100211222121100 has 36 divisors (see below), whose sum is σ = 222515522989144. Its totient is φ = 39152291431680.

The previous prime is 100211222121091. The next prime is 100211222121137. The reversal of 100211222121100 is 1121222112001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11652463389 + ... + 11652471988.

Almost surely, 2^{100211222121100} is an apocalyptic number.

100211222121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100211222121100 is an abundant number, since it is smaller than the sum of its proper divisors (122304300868044).

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

100211222121100 is a wasteful number, since it uses less digits than its factorization.

100211222121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23304935434 (or 23304935427 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100211222121100 its reverse (1121222112001), we get a palindrome (101332444233101).

Subtracting from 100211222121100 its reverse (1121222112001), we obtain a palindrome (99090000009099).

The spelling of 100211222121100 in words is "one hundred trillion, two hundred eleven billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred".