22215052 has 12 divisors (see below), whose sum is σ = 38909416. Its totient is φ = 11098080.

The previous prime is 22215049. The next prime is 22215091. The reversal of 22215052 is 25051222.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7552 + ... + 10072.

Almost surely, 2^22215052 is an apocalyptic number.

It is an amenable number.

22215052 is a deficient number, since it is larger than the sum of its proper divisors (16694364).

22215052 is a wasteful number, since it uses less digits than its factorization.

22215052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4728 (or 4726 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 22215052 is about 4713.2846296399. The cubic root of 22215052 is about 281.1139805163.

Adding to 22215052 its reverse (25051222), we get a palindrome (47266274).

The spelling of 22215052 in words is "twenty-two million, two hundred fifteen thousand, fifty-two".