121355325522 has 16 divisors (see below), whose sum is σ = 269678501280. Its totient is φ = 40451775156.

The previous prime is 121355325521. The next prime is 121355325563. The reversal of 121355325522 is 225523553121.

121355325522 is a `hidden beast` number, since 1 + 21 + 3 + 55 + 32 + 552 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (121355325521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1123660368 + ... + 1123660475.

It is an arithmetic number, because the mean of its divisors is an integer number (16854906330).

Almost surely, 2^121355325522 is an apocalyptic number.

121355325522 is an abundant number, since it is smaller than the sum of its proper divisors (148323175758).

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

121355325522 is a wasteful number, since it uses less digits than its factorization.

121355325522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247320854 (or 2247320848 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

Adding to 121355325522 its reverse (225523553121), we get a palindrome (346878878643).

The spelling of 121355325522 in words is "one hundred twenty-one billion, three hundred fifty-five million, three hundred twenty-five thousand, five hundred twenty-two".