22231543225 has 12 divisors (see below), whose sum is σ = 27617527504. Its totient is φ = 17752709520.

The previous prime is 22231543223. The next prime is 22231543241. The reversal of 22231543225 is 52234513222.

It is not a de Polignac number, because 22231543225 - 2¹ = 22231543223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22231543223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 799179 + ... + 826528.

Almost surely, 2^22231543225 is an apocalyptic number.

22231543225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22231543225 is a deficient number, since it is larger than the sum of its proper divisors (5385984279).

22231543225 is a wasteful number, since it uses less digits than its factorization.

22231543225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626264 (or 1626259 counting only the distinct ones).

The product of its digits is 28800, while the sum is 31.

The spelling of 22231543225 in words is "twenty-two billion, two hundred thirty-one million, five hundred forty-three thousand, two hundred twenty-five".