22224040002 has 24 divisors (see below), whose sum is σ = 48176843520. Its totient is φ = 7404204600.

The previous prime is 22224039997. The next prime is 22224040009. The reversal of 22224040002 is 20004042222.

22224040002 is a `hidden beast` number, since 2 + 22 + 240 + 400 + 0 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (22224040009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281302 + ... + 351537.

It is an arithmetic number, because the mean of its divisors is an integer number (2007368480).

Almost surely, 2^22224040002 is an apocalyptic number.

22224040002 is an abundant number, since it is smaller than the sum of its proper divisors (25952803518).

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

22224040002 is a wasteful number, since it uses less digits than its factorization.

22224040002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634798 (or 634795 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 22224040002 its reverse (20004042222), we get a palindrome (42228082224).

The spelling of 22224040002 in words is "twenty-two billion, two hundred twenty-four million, forty thousand, two".