22151017157 has 4 divisors (see below), whose sum is σ = 22366075680. Its totient is φ = 21935958636.

The previous prime is 22151017127. The next prime is 22151017177. The reversal of 22151017157 is 75171015122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22151017157 - 2⁶ = 22151017093 is a prime.

It is a super-2 number, since 2×22151017157² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22151017127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107529107 + ... + 107529312.

It is an arithmetic number, because the mean of its divisors is an integer number (5591518920).

Almost surely, 2^22151017157 is an apocalyptic number.

It is an amenable number.

22151017157 is a deficient number, since it is larger than the sum of its proper divisors (215058523).

22151017157 is a wasteful number, since it uses less digits than its factorization.

22151017157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215058522.

The product of its (nonzero) digits is 4900, while the sum is 32.

The spelling of 22151017157 in words is "twenty-two billion, one hundred fifty-one million, seventeen thousand, one hundred fifty-seven".