22218200402 has 8 divisors (see below), whose sum is σ = 34402374912. Its totient is φ = 10750742100.

The previous prime is 22218200401. The next prime is 22218200413. The reversal of 22218200402 is 20400281222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (22218200401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179178974 + ... + 179179097.

It is an arithmetic number, because the mean of its divisors is an integer number (4300296864).

Almost surely, 2^22218200402 is an apocalyptic number.

22218200402 is a deficient number, since it is larger than the sum of its proper divisors (12184174510).

22218200402 is a wasteful number, since it uses less digits than its factorization.

22218200402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358358104.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22218200402 its reverse (20400281222), we get a palindrome (42618481624).

The spelling of 22218200402 in words is "twenty-two billion, two hundred eighteen million, two hundred thousand, four hundred two".