2120111001112 has 32 divisors (see below), whose sum is σ = 4281366474000. Its totient is φ = 978427488384.

The previous prime is 2120111001103. The next prime is 2120111001121. The reversal of 2120111001112 is 2111001110212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2120111001103) and next prime (2120111001121).

It is a super-2 number, since 2×2120111001112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 2120111001092 and 2120111001101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318523 + ... + 2083669.

Almost surely, 2^{2120111001112} is an apocalyptic number.

It is an amenable number.

2120111001112 is an abundant number, since it is smaller than the sum of its proper divisors (2161255472888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2120111001112 is a wasteful number, since it uses less digits than its factorization.

2120111001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1776715 (or 1776711 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2120111001112 its reverse (2111001110212), we get a palindrome (4231112111324).

The spelling of 2120111001112 in words is "two trillion, one hundred twenty billion, one hundred eleven million, one thousand, one hundred twelve".