22231251125 has 32 divisors (see below), whose sum is σ = 28539265248. Its totient is φ = 17277120000.

The previous prime is 22231251113. The next prime is 22231251139. The reversal of 22231251125 is 52115213222.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 14028507364 + 8202743761 = 118442^2 + 90569^2 .

It is not a de Polignac number, because 22231251125 - 2²⁰ = 22230202549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22231251094 and 22231251103.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3238697 + ... + 3245553.

It is an arithmetic number, because the mean of its divisors is an integer number (891852039).

Almost surely, 2^22231251125 is an apocalyptic number.

22231251125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22231251125 is a deficient number, since it is larger than the sum of its proper divisors (6308014123).

22231251125 is an equidigital number, since it uses as much as digits as its factorization.

22231251125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7610 (or 7600 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

Adding to 22231251125 its reverse (52115213222), we get a palindrome (74346464347).

The spelling of 22231251125 in words is "twenty-two billion, two hundred thirty-one million, two hundred fifty-one thousand, one hundred twenty-five".