121601775112 has 16 divisors (see below), whose sum is σ = 228008961360. Its totient is φ = 60799385424.

The previous prime is 121601775109. The next prime is 121601775181. The reversal of 121601775112 is 211577106121.

It is a super-2 number, since 2×121601775112² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204483 + ... + 533869.

It is an arithmetic number, because the mean of its divisors is an integer number (14250560085).

Almost surely, 2^121601775112 is an apocalyptic number.

It is an amenable number.

121601775112 is a deficient number, since it is larger than the sum of its proper divisors (106407186248).

121601775112 is a wasteful number, since it uses less digits than its factorization.

121601775112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375540 (or 375536 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 34.

The spelling of 121601775112 in words is "one hundred twenty-one billion, six hundred one million, seven hundred seventy-five thousand, one hundred twelve".