22115421956159 has 32 divisors (see below), whose sum is σ = 25446417795072. Its totient is φ = 18827853408000.

The previous prime is 22115421956119. The next prime is 22115421956171. The reversal of 22115421956159 is 95165912451122.

It is not a de Polignac number, because 22115421956159 - 2²⁴ = 22115405178943 is a prime.

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 22115421956159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22115421956119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 992735729 + ... + 992758005.

It is an arithmetic number, because the mean of its divisors is an integer number (795200556096).

Almost surely, 2^{22115421956159} is an apocalyptic number.

22115421956159 is a deficient number, since it is larger than the sum of its proper divisors (3330995838913).

22115421956159 is a wasteful number, since it uses less digits than its factorization.

22115421956159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24167.

The product of its digits is 1944000, while the sum is 53.

The spelling of 22115421956159 in words is "twenty-two trillion, one hundred fifteen billion, four hundred twenty-one million, nine hundred fifty-six thousand, one hundred fifty-nine".