100122111202212 has 72 divisors (see below), whose sum is σ = 285000574639872. Its totient is φ = 29361322929600.

The previous prime is 100122111202193. The next prime is 100122111202247. The reversal of 100122111202212 is 212202111221001.

100122111202212 is a `hidden beast` number, since 100 + 1 + 221 + 1 + 120 + 221 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4077949243 + ... + 4077973794.

Almost surely, 2^{100122111202212} is an apocalyptic number.

100122111202212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100122111202212 is an abundant number, since it is smaller than the sum of its proper divisors (184878463437660).

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

100122111202212 is a wasteful number, since it uses less digits than its factorization.

100122111202212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8155923089 (or 8155923084 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 100122111202212 its reverse (212202111221001), we get a palindrome (312324222423213).

The spelling of 100122111202212 in words is "one hundred trillion, one hundred twenty-two billion, one hundred eleven million, two hundred two thousand, two hundred twelve".