22218202024 has 8 divisors (see below), whose sum is σ = 41659128810. Its totient is φ = 11109101008.

The previous prime is 22218202021. The next prime is 22218202049. The reversal of 22218202024 is 42020281222.

It can be written as a sum of positive squares in only one way, i.e., 16550822500 + 5667379524 = 128650^2 + 75282^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 22218202024.

It is not an unprimeable number, because it can be changed into a prime (22218202021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1388637619 + ... + 1388637634.

Almost surely, 2^22218202024 is an apocalyptic number.

It is an amenable number.

22218202024 is a deficient number, since it is larger than the sum of its proper divisors (19440926786).

22218202024 is a wasteful number, since it uses less digits than its factorization.

22218202024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777275259 (or 2777275255 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 22218202024 its reverse (42020281222), we get a palindrome (64238483246).

The spelling of 22218202024 in words is "twenty-two billion, two hundred eighteen million, two hundred two thousand, twenty-four".