122102222018 has 24 divisors (see below), whose sum is σ = 215252387532. Its totient is φ = 51790040064.

The previous prime is 122102222017. The next prime is 122102222027. The reversal of 122102222018 is 810222201221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 119921612209 + 2180609809 = 346297^2 + 46697^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 122102221984 and 122102222002.

It is not an unprimeable number, because it can be changed into a prime (122102222017) 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, 6412871 + ... + 6431882.

Almost surely, 2^122102222018 is an apocalyptic number.

122102222018 is a deficient number, since it is larger than the sum of its proper divisors (93150165514).

122102222018 is a wasteful number, since it uses less digits than its factorization.

122102222018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12844866 (or 12844859 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 122102222018 its reverse (810222201221), we get a palindrome (932324423239).

The spelling of 122102222018 in words is "one hundred twenty-two billion, one hundred two million, two hundred twenty-two thousand, eighteen".