1816698222 has 12 divisors (see below), whose sum is σ = 3936179520. Its totient is φ = 605566068.

The previous prime is 1816698209. The next prime is 1816698259. The reversal of 1816698222 is 2228966181.

It is a super-2 number, since 2×1816698222² = 6600784859635922568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50463822 + ... + 50463857.

It is an arithmetic number, because the mean of its divisors is an integer number (328014960).

Almost surely, 2^1816698222 is an apocalyptic number.

1816698222 is an abundant number, since it is smaller than the sum of its proper divisors (2119481298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1816698222 is a wasteful number, since it uses less digits than its factorization.

1816698222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100927687 (or 100927684 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 1816698222 is about 42622.7430135603. The cubic root of 1816698222 is about 1220.1903810214.

The spelling of 1816698222 in words is "one billion, eight hundred sixteen million, six hundred ninety-eight thousand, two hundred twenty-two".