102221022222 has 32 divisors (see below), whose sum is σ = 247808540160. Its totient is φ = 30976067160.

The previous prime is 102221022217. The next prime is 102221022263. The reversal of 102221022222 is 222220122201.

It is a super-2 number, since 2×102221022222² (a number of 23 digits) contains 22 as substring.

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 = 102221022195 and 102221022204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86044038 + ... + 86045225.

It is an arithmetic number, because the mean of its divisors is an integer number (7744016880).

Almost surely, 2^102221022222 is an apocalyptic number.

102221022222 is an abundant number, since it is smaller than the sum of its proper divisors (145587517938).

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

102221022222 is a wasteful number, since it uses less digits than its factorization.

102221022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172089285 (or 172089279 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 102221022222 its reverse (222220122201), we get a palindrome (324441144423).

The spelling of 102221022222 in words is "one hundred two billion, two hundred twenty-one million, twenty-two thousand, two hundred twenty-two".