22202004220400 has 60 divisors (see below), whose sum is σ = 53342401625232. Its totient is φ = 8880454302720.

The previous prime is 22202004220391. The next prime is 22202004220447. The reversal of 22202004220400 is 402240020222.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 9276557 + ... + 11421843.

Almost surely, 2^{22202004220400} is an apocalyptic number.

22202004220400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22202004220400 is an abundant number, since it is smaller than the sum of its proper divisors (31140397404832).

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

22202004220400 is a wasteful number, since it uses less digits than its factorization.

22202004220400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171178 (or 2171167 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 22202004220400 its reverse (402240020222), we get a palindrome (22604244240622).

The spelling of 22202004220400 in words is "twenty-two trillion, two hundred two billion, four million, two hundred twenty thousand, four hundred".