10521121167 has 6 divisors (see below), whose sum is σ = 15197175032. Its totient is φ = 7014080772.

The previous prime is 10521121159. The next prime is 10521121181. The reversal of 10521121167 is 76112112501.

10521121167 is a `hidden beast` number, since 1 + 0 + 521 + 121 + 16 + 7 = 666.

It is not a de Polignac number, because 10521121167 - 2³ = 10521121159 is a prime.

It is a super-2 number, since 2×10521121167² (a number of 21 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 10521121167.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521121147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 584506723 + ... + 584506740.

Almost surely, 2^10521121167 is an apocalyptic number.

10521121167 is a deficient number, since it is larger than the sum of its proper divisors (4676053865).

10521121167 is a wasteful number, since it uses less digits than its factorization.

10521121167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169013469 (or 1169013466 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 27.

Adding to 10521121167 its reverse (76112112501), we get a palindrome (86633233668).

The spelling of 10521121167 in words is "ten billion, five hundred twenty-one million, one hundred twenty-one thousand, one hundred sixty-seven".