22221298320 has 160 divisors (see below), whose sum is σ = 74426736384. Its totient is φ = 5452032000.

The previous prime is 22221298313. The next prime is 22221298321. The reversal of 22221298320 is 2389212222.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (22221298321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 958870 + ... + 981770.

Almost surely, 2^22221298320 is an apocalyptic number.

22221298320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22221298320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37213368192).

22221298320 is an abundant number, since it is smaller than the sum of its proper divisors (52205438064).

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

22221298320 is a wasteful number, since it uses less digits than its factorization.

22221298320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23241 (or 23235 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The spelling of 22221298320 in words is "twenty-two billion, two hundred twenty-one million, two hundred ninety-eight thousand, three hundred twenty".