102212112222 has 64 divisors (see below), whose sum is σ = 247875102720. Its totient is φ = 30962347200.

The previous prime is 102212112151. The next prime is 102212112229. The reversal of 102212112222 is 222211212201.

It is a happy number.

102212112222 is a `hidden beast` number, since 10 + 221 + 211 + 2 + 222 = 666.

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 = 102212112195 and 102212112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212112229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1724947 + ... + 1783217.

It is an arithmetic number, because the mean of its divisors is an integer number (3873048480).

Almost surely, 2^102212112222 is an apocalyptic number.

102212112222 is an abundant number, since it is smaller than the sum of its proper divisors (145662990498).

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

102212112222 is a wasteful number, since it uses less digits than its factorization.

102212112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61246 (or 61240 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 102212112222 its reverse (222211212201), we get a palindrome (324423324423).

The spelling of 102212112222 in words is "one hundred two billion, two hundred twelve million, one hundred twelve thousand, two hundred twenty-two".