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1210120200212 = 227115973912227
BaseRepresentation
bin10001100111000000110…
…010001110000000010100
311021200112100122112210112
4101213000302032000110
5124311311232401322
62323531015342152
7153266622661640
oct21470062160024
94250470575715
101210120200212
1142723333a320
12176642981958
138a16316c261
14427da619c20
15217283dd5e2
hex119c0c8e014

1210120200212 has 96 divisors (see below), whose sum is σ = 2721796439040. Its totient is φ = 457134693120.

The previous prime is 1210120200197. The next prime is 1210120200253. The reversal of 1210120200212 is 2120020210121.

It is a super-2 number, since 2×12101202002122 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 870443 + ... + 1782669.

It is an arithmetic number, because the mean of its divisors is an integer number (28352046240).

Almost surely, 21210120200212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210120200212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360898219520).

1210120200212 is an abundant number, since it is smaller than the sum of its proper divisors (1511676238828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1210120200212 is a wasteful number, since it uses less digits than its factorization.

1210120200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912381 (or 912379 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1210120200212 its reverse (2120020210121), we get a palindrome (3330140410333).

Subtracting 1210120200212 from its reverse (2120020210121), we obtain a palindrome (909900009909).

The spelling of 1210120200212 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred thousand, two hundred twelve".

Divisors: 1 2 4 7 11 14 22 28 44 59 73 77 118 146 154 236 292 308 413 511 649 803 826 1022 1298 1606 1652 2044 2596 3212 4307 4543 5621 8614 9086 11242 17228 18172 22484 30149 47377 60298 94754 120596 189508 331639 663278 912227 1326556 1824454 3648908 6385589 10034497 12771178 20068994 25542356 40137988 53821393 66592571 70241479 107642786 133185142 140482958 215285572 266370284 280965916 376749751 466147997 592035323 732518281 753499502 932295994 1184070646 1465036562 1506999004 1864591988 2368141292 2930073124 3928961689 4144247261 5127627967 7857923378 8288494522 10255255934 15715846756 16576989044 20510511868 27502731823 43218578579 55005463646 86437157158 110010927292 172874314316 302530050053 605060100106 1210120200212