22470012 has 36 divisors (see below), whose sum is σ = 58760520. Its totient is φ = 7231392.

The previous prime is 22470001. The next prime is 22470029. The reversal of 22470012 is 21007422.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9718 + ... + 11805.

Almost surely, 2^22470012 is an apocalyptic number.

It is an amenable number.

22470012 is an abundant number, since it is smaller than the sum of its proper divisors (36290508).

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

22470012 is a wasteful number, since it uses less digits than its factorization.

22470012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21562 (or 21557 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 22470012 is about 4740.2544235515. The cubic root of 22470012 is about 282.1853316206.

Adding to 22470012 its reverse (21007422), we get a palindrome (43477434).

The spelling of 22470012 in words is "twenty-two million, four hundred seventy thousand, twelve".