2112132312111 has 16 divisors (see below), whose sum is σ = 3111478804224. Its totient is φ = 1267639511424.

The previous prime is 2112132312091. The next prime is 2112132312113. The reversal of 2112132312111 is 1112132312112.

It is not a de Polignac number, because 2112132312111 - 2⁵ = 2112132312079 is a prime.

It is a super-2 number, since 2×2112132312111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112132312113) 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, 900310981 + ... + 900313326.

It is an arithmetic number, because the mean of its divisors is an integer number (194467425264).

Almost surely, 2^{2112132312111} is an apocalyptic number.

2112132312111 is a deficient number, since it is larger than the sum of its proper divisors (999346492113).

2112132312111 is a wasteful number, since it uses less digits than its factorization.

2112132312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800624350.

The product of its digits is 144, while the sum is 21.

Adding to 2112132312111 its reverse (1112132312112), we get a palindrome (3224264624223).

Subtracting from 2112132312111 its reverse (1112132312112), we obtain a palindrome (999999999999).

The spelling of 2112132312111 in words is "two trillion, one hundred twelve billion, one hundred thirty-two million, three hundred twelve thousand, one hundred eleven".