100556365212 has 72 divisors (see below), whose sum is σ = 255138688896. Its totient is φ = 33393091104.

The previous prime is 100556365211. The next prime is 100556365241. The reversal of 100556365212 is 212563655001.

100556365212 is a `hidden beast` number, since 1 + 0 + 0 + 5 + 5 + 636 + 5 + 2 + 12 = 666.

It is a super-2 number, since 2×100556365212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100556365211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18073143 + ... + 18078705.

Almost surely, 2^100556365212 is an apocalyptic number.

100556365212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100556365212 is an abundant number, since it is smaller than the sum of its proper divisors (154582323684).

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

100556365212 is a wasteful number, since it uses less digits than its factorization.

100556365212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7367 (or 7362 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 100556365212 in words is "one hundred billion, five hundred fifty-six million, three hundred sixty-five thousand, two hundred twelve".