121700051550571 has 16 divisors (see below), whose sum is σ = 131116120218720. Its totient is φ = 112291780677120.

The previous prime is 121700051550563. The next prime is 121700051550601. The reversal of 121700051550571 is 175055150007121.

It is a cyclic number.

It is not a de Polignac number, because 121700051550571 - 2³ = 121700051550563 is a prime.

It is a super-2 number, since 2×121700051550571² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121700051556571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362430771 + ... + 362766403.

It is an arithmetic number, because the mean of its divisors is an integer number (8194757513670).

Almost surely, 2^{121700051550571} is an apocalyptic number.

121700051550571 is a deficient number, since it is larger than the sum of its proper divisors (9416068668149).

121700051550571 is a wasteful number, since it uses less digits than its factorization.

121700051550571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347166.

The product of its (nonzero) digits is 61250, while the sum is 40.

The spelling of 121700051550571 in words is "one hundred twenty-one trillion, seven hundred billion, fifty-one million, five hundred fifty thousand, five hundred seventy-one".