22213025 has 12 divisors (see below), whose sum is σ = 27681264. Its totient is φ = 17682000.

The previous prime is 22213007. The next prime is 22213049. The reversal of 22213025 is 52031222.

It is not a de Polignac number, because 22213025 - 2¹⁴ = 22196641 is a prime.

It is a hoax number, since the sum of its digits (17) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22212994 and 22213012.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3170 + ... + 7380.

It is an arithmetic number, because the mean of its divisors is an integer number (2306772).

Almost surely, 2^22213025 is an apocalyptic number.

22213025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22213025 is a deficient number, since it is larger than the sum of its proper divisors (5468239).

22213025 is a wasteful number, since it uses less digits than its factorization.

22213025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4432 (or 4427 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22213025 is about 4713.0695942241. The cubic root of 22213025 is about 281.1054302269.

Adding to 22213025 its reverse (52031222), we get a palindrome (74244247).

The spelling of 22213025 in words is "twenty-two million, two hundred thirteen thousand, twenty-five".