222123021018 has 8 divisors (see below), whose sum is σ = 444246042048. Its totient is φ = 74041007004.

The previous prime is 222123021017. The next prime is 222123021031. The reversal of 222123021018 is 810120321222.

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

222123021018 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (222123021017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18510251746 + ... + 18510251757.

It is an arithmetic number, because the mean of its divisors is an integer number (55530755256).

Almost surely, 2^222123021018 is an apocalyptic number.

222123021018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

222123021018 is a wasteful number, since it uses less digits than its factorization.

222123021018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37020503508.

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 222123021018 in words is "two hundred twenty-two billion, one hundred twenty-three million, twenty-one thousand, eighteen".