22288227 has 12 divisors (see below), whose sum is σ = 32180184. Its totient is φ = 13715520.

The previous prime is 22288223. The next prime is 22288229. The reversal of 22288227 is 72288222.

It is not a de Polignac number, because 22288227 - 2² = 22288223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22288223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21474 + ... + 22487.

It is an arithmetic number, because the mean of its divisors is an integer number (2681682).

Almost surely, 2^22288227 is an apocalyptic number.

22288227 is a deficient number, since it is larger than the sum of its proper divisors (9891957).

22288227 is a wasteful number, since it uses less digits than its factorization.

22288227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43990 (or 43977 counting only the distinct ones).

The product of its digits is 14336, while the sum is 33.

The square root of 22288227 is about 4721.0408809922. The cubic root of 22288227 is about 281.4222995600.

The spelling of 22288227 in words is "twenty-two million, two hundred eighty-eight thousand, two hundred twenty-seven".