121022211102100 has 144 divisors (see below), whose sum is σ = 334102134844800. Its totient is φ = 37721208537600.

The previous prime is 121022211102083. The next prime is 121022211102151. The reversal of 121022211102100 is 1201112220121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 160001989 + ... + 160756588.

It is an arithmetic number, because the mean of its divisors is an integer number (2320153714200).

Almost surely, 2^{121022211102100} is an apocalyptic number.

121022211102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121022211102100 is an abundant number, since it is smaller than the sum of its proper divisors (213079923742700).

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

121022211102100 is a wasteful number, since it uses less digits than its factorization.

121022211102100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320758623 (or 320758602 counting only the distinct ones).

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

Adding to 121022211102100 its reverse (1201112220121), we get a palindrome (122223323322221).

The spelling of 121022211102100 in words is "one hundred twenty-one trillion, twenty-two billion, two hundred eleven million, one hundred two thousand, one hundred".