22489989120 has 576 divisors, whose sum is σ = 84556846080. Its totient is φ = 5662310400.

The previous prime is 22489989097. The next prime is 22489989131. The reversal of 22489989120 is 2198998422.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-2 number, since 2×22489989120² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 548536300 + ... + 548536340.

It is an arithmetic number, because the mean of its divisors is an integer number (146800080).

Almost surely, 2^22489989120 is an apocalyptic number.

22489989120 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 22489989120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42278423040).

22489989120 is an abundant number, since it is smaller than the sum of its proper divisors (62066856960).

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

22489989120 is an frugal number, since it uses more digits than its factorization.

22489989120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 22489989120 in words is "twenty-two billion, four hundred eighty-nine million, nine hundred eighty-nine thousand, one hundred twenty".