18113222 has 8 divisors (see below), whose sum is σ = 27410616. Its totient is φ = 8976352.

The previous prime is 18113209. The next prime is 18113231. The reversal of 18113222 is 22231181.

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

It is a super-2 number, since 2×18113222² = 656177622442568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18113194 and 18113203.

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, 39848 + ... + 40299.

It is an arithmetic number, because the mean of its divisors is an integer number (3426327).

Almost surely, 2^18113222 is an apocalyptic number.

18113222 is a deficient number, since it is larger than the sum of its proper divisors (9297394).

18113222 is a wasteful number, since it uses less digits than its factorization.

18113222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80262.

The product of its digits is 192, while the sum is 20.

The square root of 18113222 is about 4255.9631107424. The cubic root of 18113222 is about 262.6224831274.

The spelling of 18113222 in words is "eighteen million, one hundred thirteen thousand, two hundred twenty-two".