22227027264 has 672 divisors, whose sum is σ = 78284344320. Its totient is φ = 6186958848.

The previous prime is 22227027239. The next prime is 22227027271. The reversal of 22227027264 is 46272072222.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 99672657 + ... + 99672879.

It is an arithmetic number, because the mean of its divisors is an integer number (116494560).

Almost surely, 2^22227027264 is an apocalyptic number.

22227027264 is a gapful number since it is divisible by the number (24) 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 22227027264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39142172160).

22227027264 is an abundant number, since it is smaller than the sum of its proper divisors (56057317056).

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

22227027264 is a wasteful number, since it uses less digits than its factorization.

22227027264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

Adding to 22227027264 its reverse (46272072222), we get a palindrome (68499099486).

The spelling of 22227027264 in words is "twenty-two billion, two hundred twenty-seven million, twenty-seven thousand, two hundred sixty-four".