121479412241128 has 32 divisors (see below), whose sum is σ = 228722988728520. Its totient is φ = 60486624000000.

The previous prime is 121479412241119. The next prime is 121479412241171. The reversal of 121479412241128 is 821142214974121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 118208168480164 + 3271243760964 = 10872358^2 + 1808658^2 .

It is a super-2 number, since 2×121479412241128² (a number of 29 digits) contains 22 as substring.

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, 117093478 + ... + 118126378.

Almost surely, 2^{121479412241128} is an apocalyptic number.

It is an amenable number.

121479412241128 is a deficient number, since it is larger than the sum of its proper divisors (107243576487392).

121479412241128 is a wasteful number, since it uses less digits than its factorization.

121479412241128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094149 (or 1094145 counting only the distinct ones).

The product of its digits is 516096, while the sum is 49.

The spelling of 121479412241128 in words is "one hundred twenty-one trillion, four hundred seventy-nine billion, four hundred twelve million, two hundred forty-one thousand, one hundred twenty-eight".