22247642088 has 480 divisors, whose sum is σ = 77131909800. Its totient is φ = 5962263552.

The previous prime is 22247642083. The next prime is 22247642111. The reversal of 22247642088 is 88024674222.

It can be written as a sum of positive squares in 4 ways, for example, as 20379846564 + 1867795524 = 142758^2 + 43218^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22247642083) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 34069570 + ... + 34070222.

Almost surely, 2^22247642088 is an apocalyptic number.

22247642088 is a gapful number since it is divisible by the number (28) 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 22247642088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38565954900).

22247642088 is an abundant number, since it is smaller than the sum of its proper divisors (54884267712).

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

22247642088 is a wasteful number, since it uses less digits than its factorization.

22247642088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 45.

The spelling of 22247642088 in words is "twenty-two billion, two hundred forty-seven million, six hundred forty-two thousand, eighty-eight".