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212120110201020 = 22357505047881431
BaseRepresentation
bin110000001110110000001111…
…110100010111100010111100
31000211001111002012020120020120
4300032300033310113202330
5210300333441202413040
62031050344450014540
762452113034232310
oct6016601764274274
91024044065216216
10212120110201020
11616516a728099a
121b95a36b877450
139148ac093b818
143a5494d433b40
15197cae69827d0
hexc0ec0fd178bc

212120110201020 has 48 divisors (see below), whose sum is σ = 678784352644608. Its totient is φ = 48484596617280.

The previous prime is 212120110201007. The next prime is 212120110201037. The reversal of 212120110201020 is 20102011021212.

212120110201020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 252523940296 + ... + 252523941135.

It is an arithmetic number, because the mean of its divisors is an integer number (14141340680096).

Almost surely, 2212120110201020 is an apocalyptic number.

212120110201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212120110201020 is an abundant number, since it is smaller than the sum of its proper divisors (466664242443588).

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

212120110201020 is a wasteful number, since it uses less digits than its factorization.

212120110201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505047881450 (or 505047881448 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212120110201020 its reverse (20102011021212), we get a palindrome (232222121222232).

The spelling of 212120110201020 in words is "two hundred twelve trillion, one hundred twenty billion, one hundred ten million, two hundred one thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 505047881431 1010095762862 1515143644293 2020191525724 2525239407155 3030287288586 3535335170017 5050478814310 6060574577172 7070670340034 7575718221465 10100957628620 10606005510051 14141340680068 15151436442930 17676675850085 21212011020102 30302872885860 35353351700170 42424022040204 53030027550255 70706703400340 106060055100510 212120110201020