22012113225 has 24 divisors (see below), whose sum is σ = 38308803040. Its totient is φ = 11121909120.

The previous prime is 22012113217. The next prime is 22012113229. The reversal of 22012113225 is 52231121022.

It is not a de Polignac number, because 22012113225 - 2³ = 22012113217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012113229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7722124 + ... + 7724973.

Almost surely, 2^22012113225 is an apocalyptic number.

22012113225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22012113225 is a deficient number, since it is larger than the sum of its proper divisors (16296689815).

22012113225 is a wasteful number, since it uses less digits than its factorization.

22012113225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15447129 (or 15447124 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 22012113225 its reverse (52231121022), we get a palindrome (74243234247).

The spelling of 22012113225 in words is "twenty-two billion, twelve million, one hundred thirteen thousand, two hundred twenty-five".