22125645907 has 16 divisors (see below), whose sum is σ = 22748994720. Its totient is φ = 21511809792.

The previous prime is 22125645821. The next prime is 22125645923. The reversal of 22125645907 is 70954652122.

It is not a de Polignac number, because 22125645907 - 2¹⁹ = 22125121619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22125645937) 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, 3652293 + ... + 3658345.

It is an arithmetic number, because the mean of its divisors is an integer number (1421812170).

Almost surely, 2^22125645907 is an apocalyptic number.

22125645907 is a deficient number, since it is larger than the sum of its proper divisors (623348813).

22125645907 is an equidigital number, since it uses as much as digits as its factorization.

22125645907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6822.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 22125645907 in words is "twenty-two billion, one hundred twenty-five million, six hundred forty-five thousand, nine hundred seven".