2012102231 has 4 divisors (see below), whose sum is σ = 2016135000. Its totient is φ = 2008069464.

The previous prime is 2012102221. The next prime is 2012102243. The reversal of 2012102231 is 1322012102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322012102 = 2 ⋅661006051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2012102231 is a prime.

It is a super-2 number, since 2×2012102231² = 8097110775990354722, which 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 (2012102221) 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, 2015636 + ... + 2016633.

It is an arithmetic number, because the mean of its divisors is an integer number (504033750).

Almost surely, 2^2012102231 is an apocalyptic number.

2012102231 is a deficient number, since it is larger than the sum of its proper divisors (4032769).

2012102231 is an equidigital number, since it uses as much as digits as its factorization.

2012102231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4032768.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2012102231 is about 44856.4625332850. The cubic root of 2012102231 is about 1262.4572504036.

Adding to 2012102231 its reverse (1322012102), we get a palindrome (3334114333).

The spelling of 2012102231 in words is "two billion, twelve million, one hundred two thousand, two hundred thirty-one".