22111425 has 72 divisors (see below), whose sum is σ = 46038720. Its totient is φ = 9936000.

The previous prime is 22111393. The next prime is 22111433. The reversal of 22111425 is 52411122.

It is not a de Polignac number, because 22111425 - 2⁵ = 22111393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22111398 and 22111407.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 159006 + ... + 159144.

Almost surely, 2^22111425 is an apocalyptic number.

22111425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22111425 is an abundant number, since it is smaller than the sum of its proper divisors (23927295).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22111425 is a wasteful number, since it uses less digits than its factorization.

22111425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 255 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 22111425 is about 4702.2787029269. The cubic root of 22111425 is about 280.6761930768.

Adding to 22111425 its reverse (52411122), we get a palindrome (74522547).

The spelling of 22111425 in words is "twenty-two million, one hundred eleven thousand, four hundred twenty-five".