18225449222 has 8 divisors (see below), whose sum is σ = 27346976400. Its totient is φ = 9109790424.

The previous prime is 18225449219. The next prime is 18225449257. The reversal of 18225449222 is 22294452281.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18225449222.

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, 1459322 + ... + 1471757.

It is an arithmetic number, because the mean of its divisors is an integer number (3418372050).

Almost surely, 2^18225449222 is an apocalyptic number.

18225449222 is a deficient number, since it is larger than the sum of its proper divisors (9121527178).

18225449222 is a wasteful number, since it uses less digits than its factorization.

18225449222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2934190.

The product of its digits is 184320, while the sum is 41.

The spelling of 18225449222 in words is "eighteen billion, two hundred twenty-five million, four hundred forty-nine thousand, two hundred twenty-two".