121510197074 has 32 divisors (see below), whose sum is σ = 215298349056. Its totient is φ = 50353710480.

The previous prime is 121510197043. The next prime is 121510197139. The reversal of 121510197074 is 470791015121.

It is a super-2 number, since 2×121510197074² (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 15 ways as a sum of consecutive naturals, for example, 1057832 + ... + 1167059.

It is an arithmetic number, because the mean of its divisors is an integer number (6728073408).

Almost surely, 2^121510197074 is an apocalyptic number.

121510197074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121510197074 is a deficient number, since it is larger than the sum of its proper divisors (93788151982).

121510197074 is a wasteful number, since it uses less digits than its factorization.

121510197074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2225030.

The product of its (nonzero) digits is 17640, while the sum is 38.

The spelling of 121510197074 in words is "one hundred twenty-one billion, five hundred ten million, one hundred ninety-seven thousand, seventy-four".