2123021120112 has 80 divisors (see below), whose sum is σ = 6099826704160. Its totient is φ = 706980441600.

The previous prime is 2123021120071. The next prime is 2123021120119. The reversal of 2123021120112 is 2110211203212.

2123021120112 is a `hidden beast` number, since 21 + 230 + 211 + 201 + 1 + 2 = 666.

It is a super-2 number, since 2×2123021120112² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123021120119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1965589 + ... + 2847732.

It is an arithmetic number, because the mean of its divisors is an integer number (76247833802).

Almost surely, 2^{2123021120112} is an apocalyptic number.

It is an amenable number.

2123021120112 is an abundant number, since it is smaller than the sum of its proper divisors (3976805584048).

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

2123021120112 is a wasteful number, since it uses less digits than its factorization.

2123021120112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4814359 (or 4814347 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 2123021120112 its reverse (2110211203212), we get a palindrome (4233232323324).

The spelling of 2123021120112 in words is "two trillion, one hundred twenty-three billion, twenty-one million, one hundred twenty thousand, one hundred twelve".