121022543122 has 16 divisors (see below), whose sum is σ = 199657487232. Its totient is φ = 54668120400.

The previous prime is 121022543119. The next prime is 121022543153. The reversal of 121022543122 is 221345220121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49517004 + ... + 49519447.

It is an arithmetic number, because the mean of its divisors is an integer number (12478592952).

Almost surely, 2^121022543122 is an apocalyptic number.

121022543122 is a deficient number, since it is larger than the sum of its proper divisors (78634944110).

121022543122 is a wasteful number, since it uses less digits than its factorization.

121022543122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99036513.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 121022543122 its reverse (221345220121), we get a palindrome (342367763243).

The spelling of 121022543122 in words is "one hundred twenty-one billion, twenty-two million, five hundred forty-three thousand, one hundred twenty-two".