2012212231 has 2 divisors, whose sum is σ = 2012212232. Its totient is φ = 2012212230.

The previous prime is 2012212229. The next prime is 2012212249. The reversal of 2012212231 is 1322122102.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2012212231 - 2¹ = 2012212229 is a prime.

It is a super-2 number, since 2×2012212231² = 8097996125171994722, which contains 22 as substring.

Together with 2012212229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012212291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006106115 + 1006106116.

It is an arithmetic number, because the mean of its divisors is an integer number (1006106116).

Almost surely, 2^2012212231 is an apocalyptic number.

2012212231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012212231 is an equidigital number, since it uses as much as digits as its factorization.

2012212231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2012212231 is about 44857.6886497733. The cubic root of 2012212231 is about 1262.4802558230.

Adding to 2012212231 its reverse (1322122102), we get a palindrome (3334334333).

The spelling of 2012212231 in words is "two billion, twelve million, two hundred twelve thousand, two hundred thirty-one".