102112101111122 has 4 divisors (see below), whose sum is σ = 153168151666686. Its totient is φ = 51056050555560.

The previous prime is 102112101111121. The next prime is 102112101111197. The reversal of 102112101111122 is 221111101211201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71743085276641 + 30369015834481 = 8470129^2 + 5510809^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102112101111122.

It is not an unprimeable number, because it can be changed into a prime (102112101111121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25528025277779 + ... + 25528025277782.

Almost surely, 2^{102112101111122} is an apocalyptic number.

102112101111122 is a deficient number, since it is larger than the sum of its proper divisors (51056050555564).

102112101111122 is an equidigital number, since it uses as much as digits as its factorization.

102112101111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51056050555563.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 102112101111122 its reverse (221111101211201), we get a palindrome (323223202322323).

The spelling of 102112101111122 in words is "one hundred two trillion, one hundred twelve billion, one hundred one million, one hundred eleven thousand, one hundred twenty-two".