102121120111112 has 16 divisors (see below), whose sum is σ = 191509265105340. Its totient is φ = 51051982749696.

The previous prime is 102121120111103. The next prime is 102121120111139. The reversal of 102121120111112 is 211111021121201.

It can be written as a sum of positive squares in 2 ways, for example, as 71494702346116 + 30626417764996 = 8455454^2 + 5534114^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1072112633 + ... + 1072207880.

Almost surely, 2^{102121120111112} is an apocalyptic number.

It is an amenable number.

102121120111112 is a deficient number, since it is larger than the sum of its proper divisors (89388144994228).

102121120111112 is a wasteful number, since it uses less digits than its factorization.

102121120111112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144326472 (or 2144326468 counting only the distinct ones).

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

Adding to 102121120111112 its reverse (211111021121201), we get a palindrome (313232141232313).

The spelling of 102121120111112 in words is "one hundred two trillion, one hundred twenty-one billion, one hundred twenty million, one hundred eleven thousand, one hundred twelve".