22641012 has 24 divisors (see below), whose sum is σ = 58699200. Its totient is φ = 7546968.

The previous prime is 22641011. The next prime is 22641049. The reversal of 22641012 is 21014622.

22641012 is a `hidden beast` number, since 22 + 641 + 0 + 1 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22641011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104712 + ... + 104927.

It is an arithmetic number, because the mean of its divisors is an integer number (2445800).

Almost surely, 2^22641012 is an apocalyptic number.

It is an amenable number.

22641012 is an abundant number, since it is smaller than the sum of its proper divisors (36058188).

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

22641012 is a wasteful number, since it uses less digits than its factorization.

22641012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209652 (or 209644 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 22641012 is about 4758.2572439918. The cubic root of 22641012 is about 282.8993469755.

Adding to 22641012 its reverse (21014622), we get a palindrome (43655634).

The spelling of 22641012 in words is "twenty-two million, six hundred forty-one thousand, twelve".