18274622222 has 4 divisors (see below), whose sum is σ = 27411933336. Its totient is φ = 9137311110.

The previous prime is 18274622221. The next prime is 18274622257. The reversal of 18274622222 is 22222647281.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22222647281 = 787 ⋅28237163.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18274622221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4568655554 + ... + 4568655557.

It is an arithmetic number, because the mean of its divisors is an integer number (6852983334).

Almost surely, 2^18274622222 is an apocalyptic number.

18274622222 is a deficient number, since it is larger than the sum of its proper divisors (9137311114).

18274622222 is an equidigital number, since it uses as much as digits as its factorization.

18274622222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9137311113.

The product of its digits is 86016, while the sum is 38.

The spelling of 18274622222 in words is "eighteen billion, two hundred seventy-four million, six hundred twenty-two thousand, two hundred twenty-two".