121560622072 has 32 divisors (see below), whose sum is σ = 228292020000. Its totient is φ = 60682825728.

The previous prime is 121560622069. The next prime is 121560622087. The reversal of 121560622072 is 270226065121.

It is a super-2 number, since 2×121560622072² (a number of 23 digits) contains 22 as substring.

It is a congruent 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, 21825304 + ... + 21830872.

It is an arithmetic number, because the mean of its divisors is an integer number (7134125625).

Almost surely, 2^121560622072 is an apocalyptic number.

It is an amenable number.

121560622072 is a deficient number, since it is larger than the sum of its proper divisors (106731397928).

121560622072 is a wasteful number, since it uses less digits than its factorization.

121560622072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9463 (or 9459 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 121560622072 its reverse (270226065121), we get a palindrome (391786687193).

The spelling of 121560622072 in words is "one hundred twenty-one billion, five hundred sixty million, six hundred twenty-two thousand, seventy-two".