121650164051331 has 8 divisors (see below), whose sum is σ = 162204546185920. Its totient is φ = 81097945642152.

The previous prime is 121650164051279. The next prime is 121650164051407. The reversal of 121650164051331 is 133150461056121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-121650164051331 is a prime.

It is a super-2 number, since 2×121650164051331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121650164051331.

It is not an unprimeable number, because it can be changed into a prime (121650164052331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540800161 + ... + 541025058.

It is an arithmetic number, because the mean of its divisors is an integer number (20275568273240).

Almost surely, 2^{121650164051331} is an apocalyptic number.

121650164051331 is a deficient number, since it is larger than the sum of its proper divisors (40554382134589).

121650164051331 is a wasteful number, since it uses less digits than its factorization.

121650164051331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081862705.

The product of its (nonzero) digits is 64800, while the sum is 39.

The spelling of 121650164051331 in words is "one hundred twenty-one trillion, six hundred fifty billion, one hundred sixty-four million, fifty-one thousand, three hundred thirty-one".