122540515012 has 24 divisors (see below), whose sum is σ = 215479051200. Its totient is φ = 60975572256.

The previous prime is 122540515003. The next prime is 122540515033. The reversal of 122540515012 is 210515045221.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 926883 + ... + 1050805.

It is an arithmetic number, because the mean of its divisors is an integer number (8978293800).

Almost surely, 2^122540515012 is an apocalyptic number.

It is an amenable number.

122540515012 is a deficient number, since it is larger than the sum of its proper divisors (92938536188).

122540515012 is a wasteful number, since it uses less digits than its factorization.

122540515012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125115 (or 125113 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 122540515012 in words is "one hundred twenty-two billion, five hundred forty million, five hundred fifteen thousand, twelve".