22244044044400 has 60 divisors (see below), whose sum is σ = 53781706515112. Its totient is φ = 8840944869120.

The previous prime is 22244044044371. The next prime is 22244044044407. The reversal of 22244044044400 is 444044044222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22244044044407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177039462 + ... + 177165061.

Almost surely, 2^{22244044044400} is an apocalyptic number.

22244044044400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22244044044400 is an abundant number, since it is smaller than the sum of its proper divisors (31537662470712).

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

22244044044400 is a wasteful number, since it uses less digits than its factorization.

22244044044400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354204698 (or 354204687 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 22244044044400 its reverse (444044044222), we get a palindrome (22688088088622).

The spelling of 22244044044400 in words is "twenty-two trillion, two hundred forty-four billion, forty-four million, forty-four thousand, four hundred".