2112314021 has 4 divisors (see below), whose sum is σ = 2112752544. Its totient is φ = 2111875500.

The previous prime is 2112314003. The next prime is 2112314051. The reversal of 2112314021 is 1204132112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2112314021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112314051) 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, 211955 + ... + 221696.

It is an arithmetic number, because the mean of its divisors is an integer number (528188136).

Almost surely, 2^2112314021 is an apocalyptic number.

It is an amenable number.

2112314021 is a deficient number, since it is larger than the sum of its proper divisors (438523).

2112314021 is an equidigital number, since it uses as much as digits as its factorization.

2112314021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438522.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2112314021 is about 45959.9175477938. The cubic root of 2112314021 is about 1283.0773167977.

Adding to 2112314021 its reverse (1204132112), we get a palindrome (3316446133).

The spelling of 2112314021 in words is "two billion, one hundred twelve million, three hundred fourteen thousand, twenty-one".