180121122 has 24 divisors (see below), whose sum is σ = 394967664. Its totient is φ = 59316504.

The previous prime is 180121099. The next prime is 180121127. The reversal of 180121122 is 221121081.

180121122 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 180121095 and 180121104.

It is not an unprimeable number, because it can be changed into a prime (180121127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58788 + ... + 61775.

It is an arithmetic number, because the mean of its divisors is an integer number (16456986).

Almost surely, 2^180121122 is an apocalyptic number.

180121122 is an abundant number, since it is smaller than the sum of its proper divisors (214846542).

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

180121122 is a wasteful number, since it uses less digits than its factorization.

180121122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120654 (or 120651 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 180121122 is about 13420.9210563210. The cubic root of 180121122 is about 564.7482335616.

The spelling of 180121122 in words is "one hundred eighty million, one hundred twenty-one thousand, one hundred twenty-two".