22415012 has 6 divisors (see below), whose sum is σ = 39226278. Its totient is φ = 11207504.

The previous prime is 22415009. The next prime is 22415021. The reversal of 22415012 is 21051422.

It can be written as a sum of positive squares in only one way, i.e., 18113536 + 4301476 = 4256^2 + 2074^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2801873 + ... + 2801880.

It is an arithmetic number, because the mean of its divisors is an integer number (6537713).

Almost surely, 2^22415012 is an apocalyptic number.

It is an amenable number.

22415012 is a deficient number, since it is larger than the sum of its proper divisors (16811266).

22415012 is a wasteful number, since it uses less digits than its factorization.

22415012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5603757 (or 5603755 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 22415012 is about 4734.4494928133. The cubic root of 22415012 is about 281.9549078681.

Adding to 22415012 its reverse (21051422), we get a palindrome (43466434).

The spelling of 22415012 in words is "twenty-two million, four hundred fifteen thousand, twelve".