2012122112231 has 32 divisors (see below), whose sum is σ = 2633750028288. Its totient is φ = 1490517404640.

The previous prime is 2012122112227. The next prime is 2012122112243. The reversal of 2012122112231 is 1322112212102.

It is not a de Polignac number, because 2012122112231 - 2² = 2012122112227 is a prime.

It is a super-2 number, since 2×2012122112231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2012122112251) 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, 3196451 + ... + 3773796.

It is an arithmetic number, because the mean of its divisors is an integer number (82304688384).

Almost surely, 2^{2012122112231} is an apocalyptic number.

2012122112231 is a deficient number, since it is larger than the sum of its proper divisors (621627916057).

2012122112231 is a wasteful number, since it uses less digits than its factorization.

2012122112231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6970451.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 2012122112231 its reverse (1322112212102), we get a palindrome (3334234324333).

The spelling of 2012122112231 in words is "two trillion, twelve billion, one hundred twenty-two million, one hundred twelve thousand, two hundred thirty-one".