22215275 has 12 divisors (see below), whose sum is σ = 28997400. Its totient is φ = 16836480.

The previous prime is 22215269. The next prime is 22215293. The reversal of 22215275 is 57251222.

It is not a de Polignac number, because 22215275 - 2¹² = 22211179 is a prime.

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, 22910 + ... + 23859.

It is an arithmetic number, because the mean of its divisors is an integer number (2416450).

Almost surely, 2^22215275 is an apocalyptic number.

22215275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

22215275 is a deficient number, since it is larger than the sum of its proper divisors (6782125).

22215275 is a wasteful number, since it uses less digits than its factorization.

22215275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46798 (or 46793 counting only the distinct ones).

The product of its digits is 2800, while the sum is 26.

The square root of 22215275 is about 4713.3082861192. The cubic root of 22215275 is about 281.1149211429.

Adding to 22215275 its reverse (57251222), we get a palindrome (79466497).

The spelling of 22215275 in words is "twenty-two million, two hundred fifteen thousand, two hundred seventy-five".