22909574585021 has 16 divisors (see below), whose sum is σ = 24272702901504. Its totient is φ = 21548173296384.

The previous prime is 22909574585011. The next prime is 22909574585059. The reversal of 22909574585021 is 12058547590922.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22909574585021 - 2⁶ = 22909574584957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22909574585011) 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, 188717675 + ... + 188839031.

It is an arithmetic number, because the mean of its divisors is an integer number (1517043931344).

Almost surely, 2^{22909574585021} is an apocalyptic number.

It is an amenable number.

22909574585021 is a deficient number, since it is larger than the sum of its proper divisors (1363128316483).

22909574585021 is a wasteful number, since it uses less digits than its factorization.

22909574585021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128380.

The product of its (nonzero) digits is 18144000, while the sum is 59.

The spelling of 22909574585021 in words is "twenty-two trillion, nine hundred nine billion, five hundred seventy-four million, five hundred eighty-five thousand, twenty-one".