22722020000 has 120 divisors (see below), whose sum is σ = 56242571616. Its totient is φ = 9033056000.

The previous prime is 22722019993. The next prime is 22722020003. The reversal of 22722020000 is 2022722.

It is not an unprimeable number, because it can be changed into a prime (22722020003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3336599 + ... + 3343401.

Almost surely, 2^22722020000 is an apocalyptic number.

22722020000 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 22722020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28121285808).

22722020000 is an abundant number, since it is smaller than the sum of its proper divisors (33520551616).

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

22722020000 is an equidigital number, since it uses as much as digits as its factorization.

22722020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000 (or 6977 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

Adding to 22722020000 its reverse (2022722), we get a palindrome (22724042722).

The spelling of 22722020000 in words is "twenty-two billion, seven hundred twenty-two million, twenty thousand".