102112211222 has 48 divisors (see below), whose sum is σ = 180713899872. Its totient is φ = 43139537280.

The previous prime is 102112211191. The next prime is 102112211281. The reversal of 102112211222 is 222112211201.

It is a self number, because there is not a number n which added to its sum of digits gives 102112211222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21896063 + ... + 21900725.

It is an arithmetic number, because the mean of its divisors is an integer number (3764872914).

Almost surely, 2^102112211222 is an apocalyptic number.

102112211222 is a deficient number, since it is larger than the sum of its proper divisors (78601688650).

102112211222 is a wasteful number, since it uses less digits than its factorization.

102112211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7813 (or 7806 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102112211222 its reverse (222112211201), we get a palindrome (324224422423).

The spelling of 102112211222 in words is "one hundred two billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty-two".