121022104554 has 48 divisors (see below), whose sum is σ = 282471108192. Its totient is φ = 37226204064.

The previous prime is 121022104517. The next prime is 121022104579. The reversal of 121022104554 is 455401220121.

It is a happy number.

121022104554 is a `hidden beast` number, since 1 + 2 + 1 + 0 + 2 + 2 + 104 + 554 = 666.

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, 705937 + ... + 860459.

It is an arithmetic number, because the mean of its divisors is an integer number (5884814754).

Almost surely, 2^121022104554 is an apocalyptic number.

121022104554 is an abundant number, since it is smaller than the sum of its proper divisors (161449003638).

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

121022104554 is a wasteful number, since it uses less digits than its factorization.

121022104554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157891 (or 157888 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 121022104554 its reverse (455401220121), we get a palindrome (576423324675).

The spelling of 121022104554 in words is "one hundred twenty-one billion, twenty-two million, one hundred four thousand, five hundred fifty-four".