22299217920 has 624 divisors, whose sum is σ = 92331573120. Its totient is φ = 5090770944.

The previous prime is 22299217903. The next prime is 22299217937. The reversal of 22299217920 is 2971299222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22299217903) and next prime (22299217937).

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 27094629 + ... + 27095451.

Almost surely, 2^22299217920 is an apocalyptic number.

22299217920 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 22299217920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46165786560).

22299217920 is an abundant number, since it is smaller than the sum of its proper divisors (70032355200).

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

22299217920 is an equidigital number, since it uses as much as digits as its factorization.

22299217920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 22299217920 in words is "twenty-two billion, two hundred ninety-nine million, two hundred seventeen thousand, nine hundred twenty".