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212110212201020 = 22571818370568753
BaseRepresentation
bin110000001110100111000001…
…110110011111101000111100
31000211000112112101102001210222
4300032213001312133220330
5210300203203310413040
62031042030345320512
762451312535512410
oct6016470166375074
91024015471361728
10212110212201020
11616484880a4001
121b958468a96138
139147ba41152a3
143a54290a62d40
15197c717a21bb5
hexc0e9c1d9fa3c

212110212201020 has 48 divisors (see below), whose sum is σ = 511877020444608. Its totient is φ = 72321714017280.

The previous prime is 212110212200969. The next prime is 212110212201037. The reversal of 212110212201020 is 20102212011212.

It is a self number, because there is not a number n which added to its sum of digits gives 212110212201020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4185259037 + ... + 4185309716.

It is an arithmetic number, because the mean of its divisors is an integer number (10664104592596).

Almost surely, 2212110212201020 is an apocalyptic number.

212110212201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212110212201020 is an abundant number, since it is smaller than the sum of its proper divisors (299766808243588).

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

212110212201020 is a wasteful number, since it uses less digits than its factorization.

212110212201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8370568950 (or 8370568948 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212110212201020 its reverse (20102212011212), we get a palindrome (232212424212232).

The spelling of 212110212201020 in words is "two hundred twelve trillion, one hundred ten billion, two hundred twelve million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 181 362 724 905 1267 1810 2534 3620 5068 6335 12670 25340 8370568753 16741137506 33482275012 41852843765 58593981271 83705687530 117187962542 167411375060 234375925084 292969906355 585939812710 1171879625420 1515072944293 3030145888586 6060291777172 7575364721465 10605510610051 15150729442930 21211021220102 30301458885860 42422042440204 53027553050255 106055106100510 212110212201020