22005544251 has 16 divisors (see below), whose sum is σ = 29400588800. Its totient is φ = 14640460128.

The previous prime is 22005544199. The next prime is 22005544261. The reversal of 22005544251 is 15244550022.

It is not a de Polignac number, because 22005544251 - 2³³ = 13415609659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22005544261) 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, 5883540 + ... + 5887278.

It is an arithmetic number, because the mean of its divisors is an integer number (1837536800).

Almost surely, 2^22005544251 is an apocalyptic number.

22005544251 is a deficient number, since it is larger than the sum of its proper divisors (7395044549).

22005544251 is a wasteful number, since it uses less digits than its factorization.

22005544251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7218.

The product of its (nonzero) digits is 16000, while the sum is 30.

The spelling of 22005544251 in words is "twenty-two billion, five million, five hundred forty-four thousand, two hundred fifty-one".