22000021292 has 12 divisors (see below), whose sum is σ = 38672684736. Its totient is φ = 10950682800.

The previous prime is 22000021279. The next prime is 22000021297. The reversal of 22000021292 is 29212000022.

It is not an unprimeable number, because it can be changed into a prime (22000021297) 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, 12330959 + ... + 12332742.

It is an arithmetic number, because the mean of its divisors is an integer number (3222723728).

Almost surely, 2^22000021292 is an apocalyptic number.

It is an amenable number.

22000021292 is a deficient number, since it is larger than the sum of its proper divisors (16672663444).

22000021292 is a wasteful number, since it uses less digits than its factorization.

22000021292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24663928 (or 24663926 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The spelling of 22000021292 in words is "twenty-two billion, twenty-one thousand, two hundred ninety-two".