2012211431 has 2 divisors, whose sum is σ = 2012211432. Its totient is φ = 2012211430.

The previous prime is 2012211403. The next prime is 2012211433. The reversal of 2012211431 is 1341122102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2012211431 - 2³⁰ = 938469607 is a prime.

It is a super-2 number, since 2×2012211431² = 8097989686094135522, which contains 22 as substring.

Together with 2012211433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2012211433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006105715 + 1006105716.

It is an arithmetic number, because the mean of its divisors is an integer number (1006105716).

Almost surely, 2^2012211431 is an apocalyptic number.

2012211431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2012211431 is an equidigital number, since it uses as much as digits as its factorization.

2012211431 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 17.

The square root of 2012211431 is about 44857.6797326835. The cubic root of 2012211431 is about 1262.4800885139.

Adding to 2012211431 its reverse (1341122102), we get a palindrome (3353333533).

The spelling of 2012211431 in words is "two billion, twelve million, two hundred eleven thousand, four hundred thirty-one".