121022122100 has 72 divisors (see below), whose sum is σ = 286549951296. Its totient is φ = 43999200000.

The previous prime is 121022122061. The next prime is 121022122189. The reversal of 121022122100 is 1221220121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8309825 + ... + 8324375.

Almost surely, 2^121022122100 is an apocalyptic number.

121022122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022122100 is an abundant number, since it is smaller than the sum of its proper divisors (165527829196).

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

121022122100 is a wasteful number, since it uses less digits than its factorization.

121022122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22137 (or 22130 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121022122100 its reverse (1221220121), we get a palindrome (122243342221).

It can be divided in two parts, 1210221 and 22100, that added together give a palindrome (1232321).

The spelling of 121022122100 in words is "one hundred twenty-one billion, twenty-two million, one hundred twenty-two thousand, one hundred".