22254532772 has 12 divisors (see below), whose sum is σ = 38959999260. Its totient is φ = 11123104416.

The previous prime is 22254532757. The next prime is 22254532787. The reversal of 22254532772 is 27723545222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22254532757) and next prime (22254532787).

It can be written as a sum of positive squares in 2 ways, for example, as 4098048256 + 18156484516 = 64016^2 + 134746^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028447 + ... + 1049862.

It is an arithmetic number, because the mean of its divisors is an integer number (3246666605).

Almost surely, 2^22254532772 is an apocalyptic number.

It is an amenable number.

22254532772 is a deficient number, since it is larger than the sum of its proper divisors (16705466488).

22254532772 is a wasteful number, since it uses less digits than its factorization.

22254532772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080990 (or 2080988 counting only the distinct ones).

The product of its digits is 470400, while the sum is 41.

The spelling of 22254532772 in words is "twenty-two billion, two hundred fifty-four million, five hundred thirty-two thousand, seven hundred seventy-two".