121220772734612 has 24 divisors (see below), whose sum is σ = 212893321990440. Its totient is φ = 60394324838400.

The previous prime is 121220772734587. The next prime is 121220772734671. The reversal of 121220772734612 is 216437277022121.

It can be written as a sum of positive squares in 4 ways, for example, as 22495802364676 + 98724970369936 = 4742974^2 + 9936044^2 .

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, 24690389 + ... + 29190012.

It is an arithmetic number, because the mean of its divisors is an integer number (8870555082935).

Almost surely, 2^{121220772734612} is an apocalyptic number.

It is an amenable number.

121220772734612 is a deficient number, since it is larger than the sum of its proper divisors (91672549255828).

121220772734612 is a wasteful number, since it uses less digits than its factorization.

121220772734612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53882411 (or 53882409 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 47.

The spelling of 121220772734612 in words is "one hundred twenty-one trillion, two hundred twenty billion, seven hundred seventy-two million, seven hundred thirty-four thousand, six hundred twelve".