22220292 has 24 divisors (see below), whose sum is σ = 54897696. Its totient is φ = 6971008.

The previous prime is 22220281. The next prime is 22220299. The reversal of 22220292 is 29202222.

It is not an unprimeable number, because it can be changed into a prime (22220299) 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, 54258 + ... + 54665.

It is an arithmetic number, because the mean of its divisors is an integer number (2287404).

Almost surely, 2^22220292 is an apocalyptic number.

It is an amenable number.

22220292 is an abundant number, since it is smaller than the sum of its proper divisors (32677404).

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

22220292 is a wasteful number, since it uses less digits than its factorization.

22220292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108947 (or 108945 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 22220292 is about 4713.8404724810. The cubic root of 22220292 is about 281.1360814692.

The spelling of 22220292 in words is "twenty-two million, two hundred twenty thousand, two hundred ninety-two".