102120112121122 has 16 divisors (see below), whose sum is σ = 153527294757600. Its totient is φ = 50944349225952.

The previous prime is 102120112120987. The next prime is 102120112121143. The reversal of 102120112121122 is 221121211021201.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 102120112121122.

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 7 ways as a sum of consecutive naturals, for example, 115513129 + ... + 116393827.

It is an arithmetic number, because the mean of its divisors is an integer number (9595455922350).

Almost surely, 2^{102120112121122} is an apocalyptic number.

102120112121122 is a deficient number, since it is larger than the sum of its proper divisors (51407182636478).

102120112121122 is a wasteful number, since it uses less digits than its factorization.

102120112121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012017.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 102120112121122 its reverse (221121211021201), we get a palindrome (323241323142323).

The spelling of 102120112121122 in words is "one hundred two trillion, one hundred twenty billion, one hundred twelve million, one hundred twenty-one thousand, one hundred twenty-two".