102222221112 has 96 divisors (see below), whose sum is σ = 302073857280. Its totient is φ = 30970927680.

The previous prime is 102222221089. The next prime is 102222221201. The reversal of 102222221112 is 211122222201.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7852513 + ... + 7865519.

It is an arithmetic number, because the mean of its divisors is an integer number (3146602680).

Almost surely, 2^102222221112 is an apocalyptic number.

102222221112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102222221112 is an abundant number, since it is smaller than the sum of its proper divisors (199851636168).

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

102222221112 is a wasteful number, since it uses less digits than its factorization.

102222221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22953 (or 22946 counting only the distinct ones).

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

Adding to 102222221112 its reverse (211122222201), we get a palindrome (313344443313).

The spelling of 102222221112 in words is "one hundred two billion, two hundred twenty-two million, two hundred twenty-one thousand, one hundred twelve".