22238536907 has 4 divisors (see below), whose sum is σ = 23205429840. Its totient is φ = 21271643976.

The previous prime is 22238536891. The next prime is 22238536939. The reversal of 22238536907 is 70963583222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22238536907 - 2⁴ = 22238536891 is a prime.

It is a super-2 number, since 2×22238536907² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22238530907) 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, 483446432 + ... + 483446477.

It is an arithmetic number, because the mean of its divisors is an integer number (5801357460).

Almost surely, 2^22238536907 is an apocalyptic number.

22238536907 is a deficient number, since it is larger than the sum of its proper divisors (966892933).

22238536907 is an equidigital number, since it uses as much as digits as its factorization.

22238536907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 966892932.

The product of its (nonzero) digits is 1088640, while the sum is 47.

The spelling of 22238536907 in words is "twenty-two billion, two hundred thirty-eight million, five hundred thirty-six thousand, nine hundred seven".