121710724724 has 12 divisors (see below), whose sum is σ = 212996443044. Its totient is φ = 60854598144.

The previous prime is 121710724717. The next prime is 121710724777. The reversal of 121710724724 is 427427017121.

It can be written as a sum of positive squares in 2 ways, for example, as 28879603600 + 92831121124 = 169940^2 + 304682^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317972 + ... + 586964.

It is an arithmetic number, because the mean of its divisors is an integer number (17749703587).

Almost surely, 2^121710724724 is an apocalyptic number.

It is an amenable number.

121710724724 is a deficient number, since it is larger than the sum of its proper divisors (91285718320).

121710724724 is a wasteful number, since it uses less digits than its factorization.

121710724724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382114 (or 382112 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 38.

The spelling of 121710724724 in words is "one hundred twenty-one billion, seven hundred ten million, seven hundred twenty-four thousand, seven hundred twenty-four".