12022291 has 2 divisors, whose sum is σ = 12022292. Its totient is φ = 12022290.

The previous prime is 12022267. The next prime is 12022303. The reversal of 12022291 is 19222021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12022291 - 2²³ = 3633683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12022091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6011145 + 6011146.

It is an arithmetic number, because the mean of its divisors is an integer number (6011146).

Almost surely, 2^12022291 is an apocalyptic number.

12022291 is a deficient number, since it is larger than the sum of its proper divisors (1).

12022291 is an equidigital number, since it uses as much as digits as its factorization.

12022291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12022291 is about 3467.3175510760. The cubic root of 12022291 is about 229.0845209639.

The spelling of 12022291 in words is "twelve million, twenty-two thousand, two hundred ninety-one".