22244443021400 has 48 divisors (see below), whose sum is σ = 51738557389440. Its totient is φ = 8894297232000.

The previous prime is 22244443021303. The next prime is 22244443021429. The reversal of 22244443021400 is 412034444222.

It is a super-2 number, since 2×22244443021400² (a number of 27 digits) contains 22 as substring.

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, 21237176 + ... + 22259975.

It is an arithmetic number, because the mean of its divisors is an integer number (1077886612280).

Almost surely, 2^{22244443021400} is an apocalyptic number.

22244443021400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22244443021400 is an abundant number, since it is smaller than the sum of its proper divisors (29494114368040).

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

22244443021400 is a wasteful number, since it uses less digits than its factorization.

22244443021400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43499724 (or 43499715 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 22244443021400 its reverse (412034444222), we get a palindrome (22656477465622).

The spelling of 22244443021400 in words is "twenty-two trillion, two hundred forty-four billion, four hundred forty-three million, twenty-one thousand, four hundred".