22543221700450 has 96 divisors (see below), whose sum is σ = 45826917514560. Its totient is φ = 8182374163200.

The previous prime is 22543221700397. The next prime is 22543221700469. The reversal of 22543221700450 is 5400712234522.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 746375049 + ... + 746405251.

It is an arithmetic number, because the mean of its divisors is an integer number (477363724110).

Almost surely, 2^{22543221700450} is an apocalyptic number.

22543221700450 is an abundant number, since it is smaller than the sum of its proper divisors (23283695814110).

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

22543221700450 is a wasteful number, since it uses less digits than its factorization.

22543221700450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32692 (or 32687 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

Adding to 22543221700450 its reverse (5400712234522), we get a palindrome (27943933934972).

The spelling of 22543221700450 in words is "twenty-two trillion, five hundred forty-three billion, two hundred twenty-one million, seven hundred thousand, four hundred fifty".