121636585636122 has 16 divisors (see below), whose sum is σ = 244765644717600. Its totient is φ = 40296782971152.

The previous prime is 121636585636103. The next prime is 121636585636157. The reversal of 121636585636122 is 221636585636121.

It is a happy number.

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, 62186392497 + ... + 62186394452.

It is an arithmetic number, because the mean of its divisors is an integer number (15297852794850).

Almost surely, 2^{121636585636122} is an apocalyptic number.

121636585636122 is an abundant number, since it is smaller than the sum of its proper divisors (123129059081478).

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

121636585636122 is a wasteful number, since it uses less digits than its factorization.

121636585636122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124372787117.

The product of its digits is 18662400, while the sum is 57.

Subtracting 121636585636122 from its reverse (221636585636121), we obtain a palindrome (99999999999999).

The spelling of 121636585636122 in words is "one hundred twenty-one trillion, six hundred thirty-six billion, five hundred eighty-five million, six hundred thirty-six thousand, one hundred twenty-two".