22246237225 has 12 divisors (see below), whose sum is σ = 28105813836. Its totient is φ = 17461196480.

The previous prime is 22246237201. The next prime is 22246237253. The reversal of 22246237225 is 52273264222.

It can be written as a sum of positive squares in 6 ways, for example, as 453391849 + 21792845376 = 21293^2 + 147624^2 .

It is not a de Polignac number, because 22246237225 - 2¹⁵ = 22246204457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8393482 + ... + 8396131.

It is an arithmetic number, because the mean of its divisors is an integer number (2342151153).

Almost surely, 2^22246237225 is an apocalyptic number.

22246237225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22246237225 is a deficient number, since it is larger than the sum of its proper divisors (5859576611).

22246237225 is a wasteful number, since it uses less digits than its factorization.

22246237225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16789676 (or 16789671 counting only the distinct ones).

The product of its digits is 161280, while the sum is 37.

The spelling of 22246237225 in words is "twenty-two billion, two hundred forty-six million, two hundred thirty-seven thousand, two hundred twenty-five".