22281038907 has 4 divisors (see below), whose sum is σ = 29708051880. Its totient is φ = 14854025936.

The previous prime is 22281038891. The next prime is 22281038911. The reversal of 22281038907 is 70983018222.

It is a happy number.

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 22281038907 - 2⁴ = 22281038891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22281038947) 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, 3713506482 + ... + 3713506487.

It is an arithmetic number, because the mean of its divisors is an integer number (7427012970).

Almost surely, 2^22281038907 is an apocalyptic number.

22281038907 is a deficient number, since it is larger than the sum of its proper divisors (7427012973).

22281038907 is an equidigital number, since it uses as much as digits as its factorization.

22281038907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7427012972.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 22281038907 in words is "twenty-two billion, two hundred eighty-one million, thirty-eight thousand, nine hundred seven".