121560622125 has 32 divisors (see below), whose sum is σ = 202365845760. Its totient is φ = 64803816000.

The previous prime is 121560622111. The next prime is 121560622129. The reversal of 121560622125 is 521226065121.

It is not a de Polignac number, because 121560622125 - 2⁹ = 121560621613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121560622129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 796491 + ... + 936759.

It is an arithmetic number, because the mean of its divisors is an integer number (6323932680).

Almost surely, 2^121560622125 is an apocalyptic number.

121560622125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121560622125 is a deficient number, since it is larger than the sum of its proper divisors (80805223635).

121560622125 is a wasteful number, since it uses less digits than its factorization.

121560622125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142598 (or 142588 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 121560622125 its reverse (521226065121), we get a palindrome (642786687246).

The spelling of 121560622125 in words is "one hundred twenty-one billion, five hundred sixty million, six hundred twenty-two thousand, one hundred twenty-five".