121556035872112 has 40 divisors (see below), whose sum is σ = 236714905638000. Its totient is φ = 60468980759040.

The previous prime is 121556035872059. The next prime is 121556035872133. The reversal of 121556035872112 is 211278530655121.

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, 17765862 + ... + 23637637.

It is an arithmetic number, because the mean of its divisors is an integer number (5917872640950).

Almost surely, 2^{121556035872112} is an apocalyptic number.

It is an amenable number.

121556035872112 is a deficient number, since it is larger than the sum of its proper divisors (115158869765888).

121556035872112 is a wasteful number, since it uses less digits than its factorization.

121556035872112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41404441 (or 41404435 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 49.

The spelling of 121556035872112 in words is "one hundred twenty-one trillion, five hundred fifty-six billion, thirty-five million, eight hundred seventy-two thousand, one hundred twelve".