180021111122 has 16 divisors (see below), whose sum is σ = 270814864320. Its totient is φ = 89749868208.

The previous prime is 180021111119. The next prime is 180021111163. The reversal of 180021111122 is 221111120081.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 180021111094 and 180021111103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 864248 + ... + 1052124.

It is an arithmetic number, because the mean of its divisors is an integer number (16925929020).

Almost surely, 2^180021111122 is an apocalyptic number.

180021111122 is a deficient number, since it is larger than the sum of its proper divisors (90793753198).

180021111122 is a wasteful number, since it uses less digits than its factorization.

180021111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189265.

The product of its (nonzero) digits is 64, while the sum is 20.

The spelling of 180021111122 in words is "one hundred eighty billion, twenty-one million, one hundred eleven thousand, one hundred twenty-two".