2112102110121 has 32 divisors (see below), whose sum is σ = 2956646154240. Its totient is φ = 1338578788800.

The previous prime is 2112102110119. The next prime is 2112102110137. The reversal of 2112102110121 is 1210112012112.

It is a happy number.

It is not a de Polignac number, because 2112102110121 - 2¹ = 2112102110119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2112102110121.

It is not an unprimeable number, because it can be changed into a prime (2112102110141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14543256 + ... + 14687766.

It is an arithmetic number, because the mean of its divisors is an integer number (92395192320).

Almost surely, 2^{2112102110121} is an apocalyptic number.

It is an amenable number.

2112102110121 is a deficient number, since it is larger than the sum of its proper divisors (844544044119).

2112102110121 is a wasteful number, since it uses less digits than its factorization.

2112102110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145837.

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

Adding to 2112102110121 its reverse (1210112012112), we get a palindrome (3322214122233).

The spelling of 2112102110121 in words is "two trillion, one hundred twelve billion, one hundred two million, one hundred ten thousand, one hundred twenty-one".