22221298 has 16 divisors (see below), whose sum is σ = 38276640. Its totient is φ = 9568800.

The previous prime is 22221259. The next prime is 22221299. The reversal of 22221298 is 89212222.

It is not an unprimeable number, because it can be changed into a prime (22221299) 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, 26163 + ... + 26998.

It is an arithmetic number, because the mean of its divisors is an integer number (2392290).

Almost surely, 2^22221298 is an apocalyptic number.

22221298 is a deficient number, since it is larger than the sum of its proper divisors (16055342).

22221298 is a wasteful number, since it uses less digits than its factorization.

22221298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53193.

The product of its digits is 2304, while the sum is 28.

The square root of 22221298 is about 4713.9471783209. The cubic root of 22221298 is about 281.1403241172.

The spelling of 22221298 in words is "twenty-two million, two hundred twenty-one thousand, two hundred ninety-eight".