22215234 has 16 divisors (see below), whose sum is σ = 44478720. Its totient is φ = 7397040.

The previous prime is 22215229. The next prime is 22215241. The reversal of 22215234 is 43251222.

It is a self number, because there is not a number n which added to its sum of digits gives 22215234.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7279 + ... + 9869.

It is an arithmetic number, because the mean of its divisors is an integer number (2779920).

Almost surely, 2^22215234 is an apocalyptic number.

22215234 is an abundant number, since it is smaller than the sum of its proper divisors (22263486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22215234 is a wasteful number, since it uses less digits than its factorization.

22215234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4025.

The product of its digits is 960, while the sum is 21.

The square root of 22215234 is about 4713.3039367306. The cubic root of 22215234 is about 281.1147482030.

Adding to 22215234 its reverse (43251222), we get a palindrome (65466456).

The spelling of 22215234 in words is "twenty-two million, two hundred fifteen thousand, two hundred thirty-four".