2112251 has 4 divisors (see below), whose sum is σ = 2204112. Its totient is φ = 2020392.

The previous prime is 2112239. The next prime is 2112263. The reversal of 2112251 is 1522112.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2112239) and next prime (2112263).

It is a cyclic number.

It is not a de Polignac number, because 2112251 - 2¹⁴ = 2095867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45896 + ... + 45941.

It is an arithmetic number, because the mean of its divisors is an integer number (551028).

2^2112251 is an apocalyptic number.

2112251 is a deficient number, since it is larger than the sum of its proper divisors (91861).

2112251 is an equidigital number, since it uses as much as digits as its factorization.

2112251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91860.

The product of its digits is 40, while the sum is 14.

The square root of 2112251 is about 1453.3585242465. The cubic root of 2112251 is about 128.3064556444.

Adding to 2112251 its reverse (1522112), we get a palindrome (3634363).

The spelling of 2112251 in words is "two million, one hundred twelve thousand, two hundred fifty-one".