2112420122312 has 32 divisors (see below), whose sum is σ = 4133525014080. Its totient is φ = 1010158543680.

The previous prime is 2112420122311. The next prime is 2112420122347. The reversal of 2112420122312 is 2132210242112.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (2112420122311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 713987 + ... + 2175917.

It is an arithmetic number, because the mean of its divisors is an integer number (129172656690).

Almost surely, 2^{2112420122312} is an apocalyptic number.

It is an amenable number.

2112420122312 is a deficient number, since it is larger than the sum of its proper divisors (2021104891768).

2112420122312 is a wasteful number, since it uses less digits than its factorization.

2112420122312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469813 (or 1469809 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 2112420122312 its reverse (2132210242112), we get a palindrome (4244630364424).

The spelling of 2112420122312 in words is "two trillion, one hundred twelve billion, four hundred twenty million, one hundred twenty-two thousand, three hundred twelve".