120121022211100 has 72 divisors (see below), whose sum is σ = 262330097837360. Its totient is φ = 47741056197120.

The previous prime is 120121022211089. The next prime is 120121022211103. The reversal of 120121022211100 is 1112220121021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121022211103) by changing a digit.

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, 734976592 + ... + 735140008.

Almost surely, 2^{120121022211100} is an apocalyptic number.

120121022211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120121022211100 is an abundant number, since it is smaller than the sum of its proper divisors (142209075626260).

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

120121022211100 is a wasteful number, since it uses less digits than its factorization.

120121022211100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210407 (or 210400 counting only the distinct ones).

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

Adding to 120121022211100 its reverse (1112220121021), we get a palindrome (121233242332121).

The spelling of 120121022211100 in words is "one hundred twenty trillion, one hundred twenty-one billion, twenty-two million, two hundred eleven thousand, one hundred".