22291022 has 8 divisors (see below), whose sum is σ = 36008616. Its totient is φ = 10288152.

The previous prime is 22291007. The next prime is 22291033. The reversal of 22291022 is 22019222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22290985 and 22291003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428648 + ... + 428699.

It is an arithmetic number, because the mean of its divisors is an integer number (4501077).

Almost surely, 2^22291022 is an apocalyptic number.

22291022 is a deficient number, since it is larger than the sum of its proper divisors (13717594).

22291022 is a wasteful number, since it uses less digits than its factorization.

22291022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857362.

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

The square root of 22291022 is about 4721.3368869421. The cubic root of 22291022 is about 281.4340627575.

The spelling of 22291022 in words is "twenty-two million, two hundred ninety-one thousand, twenty-two".