22291827612 has 12 divisors (see below), whose sum is σ = 52014264456. Its totient is φ = 7430609200.

The previous prime is 22291827611. The next prime is 22291827659. The reversal of 22291827612 is 21672819222.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22291827611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928826139 + ... + 928826162.

It is an arithmetic number, because the mean of its divisors is an integer number (4334522038).

Almost surely, 2^22291827612 is an apocalyptic number.

It is an amenable number.

22291827612 is an abundant number, since it is smaller than the sum of its proper divisors (29722436844).

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

22291827612 is a wasteful number, since it uses less digits than its factorization.

22291827612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857652308 (or 1857652306 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The spelling of 22291827612 in words is "twenty-two billion, two hundred ninety-one million, eight hundred twenty-seven thousand, six hundred twelve".