2112412251 has 16 divisors (see below), whose sum is σ = 2905123104. Its totient is φ = 1364315904.

The previous prime is 2112412219. The next prime is 2112412277. The reversal of 2112412251 is 1522142112.

It is not a de Polignac number, because 2112412251 - 2⁵ = 2112412219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2112412201) 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, 14976 + ... + 66701.

It is an arithmetic number, because the mean of its divisors is an integer number (181570194).

Almost surely, 2^2112412251 is an apocalyptic number.

2112412251 is a deficient number, since it is larger than the sum of its proper divisors (792710853).

2112412251 is a wasteful number, since it uses less digits than its factorization.

2112412251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81950.

The product of its digits is 320, while the sum is 21.

The square root of 2112412251 is about 45960.9861839365. The cubic root of 2112412251 is about 1283.0972056857.

Adding to 2112412251 its reverse (1522142112), we get a palindrome (3634554363).

The spelling of 2112412251 in words is "two billion, one hundred twelve million, four hundred twelve thousand, two hundred fifty-one".