2112121110122 has 64 divisors (see below), whose sum is σ = 3431915827200. Its totient is φ = 971898755520.

The previous prime is 2112121110109. The next prime is 2112121110133. The reversal of 2112121110122 is 2210111212112.

It is a super-2 number, since 2×2112121110122² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2112121110122.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 721597823 + ... + 721600749.

It is an arithmetic number, because the mean of its divisors is an integer number (53623684800).

Almost surely, 2^{2112121110122} is an apocalyptic number.

2112121110122 is a deficient number, since it is larger than the sum of its proper divisors (1319794717078).

2112121110122 is a wasteful number, since it uses less digits than its factorization.

2112121110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2112121110122 its reverse (2210111212112), we get a palindrome (4322232322234).

The spelling of 2112121110122 in words is "two trillion, one hundred twelve billion, one hundred twenty-one million, one hundred ten thousand, one hundred twenty-two".