22000404000400 has 120 divisors (see below), whose sum is σ = 60409561290624. Its totient is φ = 7542653798400.

The previous prime is 22000404000391. The next prime is 22000404000401. The reversal of 22000404000400 is 400040400022.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (22000404000401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66006165 + ... + 66338635.

Almost surely, 2^{22000404000400} is an apocalyptic number.

22000404000400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22000404000400 is an abundant number, since it is smaller than the sum of its proper divisors (38409157290224).

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

22000404000400 is a wasteful number, since it uses less digits than its factorization.

22000404000400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356129 (or 356118 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 22000404000400 its reverse (400040400022), we get a palindrome (22400444400422).

The spelling of 22000404000400 in words is "twenty-two trillion, four hundred four million, four hundred", and thus it is an aban number.