22276412772 has 24 divisors (see below), whose sum is σ = 52195785600. Its totient is φ = 7394401056.

The previous prime is 22276412771. The next prime is 22276412849. The reversal of 22276412772 is 27721467222.

It is not an unprimeable number, because it can be changed into a prime (22276412771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3880747 + ... + 3886482.

It is an arithmetic number, because the mean of its divisors is an integer number (2174824400).

Almost surely, 2^22276412772 is an apocalyptic number.

It is an amenable number.

22276412772 is an abundant number, since it is smaller than the sum of its proper divisors (29919372828).

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

22276412772 is a wasteful number, since it uses less digits than its factorization.

22276412772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7767475 (or 7767473 counting only the distinct ones).

The product of its digits is 263424, while the sum is 42.

Adding to 22276412772 its reverse (27721467222), we get a palindrome (49997879994).

The spelling of 22276412772 in words is "twenty-two billion, two hundred seventy-six million, four hundred twelve thousand, seven hundred seventy-two".