21442245344300 has 72 divisors (see below), whose sum is σ = 50876871557232. Its totient is φ = 7779172608000.

The previous prime is 21442245344291. The next prime is 21442245344323. The reversal of 21442245344300 is 344354224412.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22032881 + ... + 22985480.

Almost surely, 2^{21442245344300} is an apocalyptic number.

21442245344300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21442245344300 is an abundant number, since it is smaller than the sum of its proper divisors (29434626212932).

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

21442245344300 is a wasteful number, since it uses less digits than its factorization.

21442245344300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45018819 (or 45018812 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 21442245344300 its reverse (344354224412), we get a palindrome (21786599568712).

The spelling of 21442245344300 in words is "twenty-one trillion, four hundred forty-two billion, two hundred forty-five million, three hundred forty-four thousand, three hundred".