22005421024144 has 80 divisors (see below), whose sum is σ = 45201456461808. Its totient is φ = 10342199771136.

The previous prime is 22005421024117. The next prime is 22005421024183. The reversal of 22005421024144 is 44142012450022.

It can be written as a sum of positive squares in 8 ways, for example, as 6056580064144 + 15948840960000 = 2461012^2 + 3993600^2 .

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 777645004 + ... + 777673300.

Almost surely, 2^{22005421024144} is an apocalyptic number.

It is an amenable number.

22005421024144 is an abundant number, since it is smaller than the sum of its proper divisors (23196035437664).

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

22005421024144 is a wasteful number, since it uses less digits than its factorization.

22005421024144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31892 (or 31886 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 22005421024144 its reverse (44142012450022), we get a palindrome (66147433474166).

The spelling of 22005421024144 in words is "twenty-two trillion, five billion, four hundred twenty-one million, twenty-four thousand, one hundred forty-four".