102112112211 has 8 divisors (see below), whose sum is σ = 136160040960. Its totient is φ = 68069462472.

The previous prime is 102112112191. The next prime is 102112112213. The reversal of 102112112211 is 112211211201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102112112211 - 2¹⁸ = 102111850067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102112112213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1274395 + ... + 1352148.

It is an arithmetic number, because the mean of its divisors is an integer number (17020005120).

Almost surely, 2^102112112211 is an apocalyptic number.

102112112211 is a deficient number, since it is larger than the sum of its proper divisors (34047928749).

102112112211 is a wasteful number, since it uses less digits than its factorization.

102112112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2639505.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 102112112211 its reverse (112211211201), we get a palindrome (214323323412).

The spelling of 102112112211 in words is "one hundred two billion, one hundred twelve million, one hundred twelve thousand, two hundred eleven".