121022022204 has 72 divisors (see below), whose sum is σ = 326553252480. Its totient is φ = 37679191200.

The previous prime is 121022022137. The next prime is 121022022229. The reversal of 121022022204 is 402220220121.

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

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, 1197442 + ... + 1294569.

It is an arithmetic number, because the mean of its divisors is an integer number (4535461840).

Almost surely, 2^121022022204 is an apocalyptic number.

It is an amenable number.

121022022204 is an abundant number, since it is smaller than the sum of its proper divisors (205531230276).

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

121022022204 is a wasteful number, since it uses less digits than its factorization.

121022022204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2492111 (or 2492106 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 121022022204 its reverse (402220220121), we get a palindrome (523242242325).

The spelling of 121022022204 in words is "one hundred twenty-one billion, twenty-two million, twenty-two thousand, two hundred four".