22212025 has 36 divisors (see below), whose sum is σ = 31404240. Its totient is φ = 15451200.

The previous prime is 22212019. The next prime is 22212049. The reversal of 22212025 is 52021222.

It is not a de Polignac number, because 22212025 - 2³ = 22212017 is a prime.

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 376446 + ... + 376504.

It is an arithmetic number, because the mean of its divisors is an integer number (872340).

Almost surely, 2^22212025 is an apocalyptic number.

22212025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22212025 is a deficient number, since it is larger than the sum of its proper divisors (9192215).

22212025 is a wasteful number, since it uses less digits than its factorization.

22212025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 22212025 is about 4712.9635050571. The cubic root of 22212025 is about 281.1012118363.

Adding to 22212025 its reverse (52021222), we get a palindrome (74233247).

The spelling of 22212025 in words is "twenty-two million, two hundred twelve thousand, twenty-five".