22015227 has 16 divisors (see below), whose sum is σ = 31743488. Its totient is φ = 13491360.

The previous prime is 22015219. The next prime is 22015241. The reversal of 22015227 is 72251022.

It is a happy number.

It is not a de Polignac number, because 22015227 - 2³ = 22015219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22015207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9528 + ... + 11610.

It is an arithmetic number, because the mean of its divisors is an integer number (1983968).

Almost surely, 2^22015227 is an apocalyptic number.

22015227 is a deficient number, since it is larger than the sum of its proper divisors (9728261).

22015227 is a wasteful number, since it uses less digits than its factorization.

22015227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2370.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 22015227 is about 4692.0386827050. The cubic root of 22015227 is about 280.2685646003.

Adding to 22015227 its reverse (72251022), we get a palindrome (94266249).

The spelling of 22015227 in words is "twenty-two million, fifteen thousand, two hundred twenty-seven".