1222040191 has 2 divisors, whose sum is σ = 1222040192. Its totient is φ = 1222040190.

The previous prime is 1222040179. The next prime is 1222040203. The reversal of 1222040191 is 1910402221.

It is a balanced prime because it is at equal distance from previous prime (1222040179) and next prime (1222040203).

It is a cyclic number.

It is not a de Polignac number, because 1222040191 - 2⁷ = 1222040063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222040111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611020095 + 611020096.

It is an arithmetic number, because the mean of its divisors is an integer number (611020096).

Almost surely, 2^1222040191 is an apocalyptic number.

1222040191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222040191 is an equidigital number, since it uses as much as digits as its factorization.

1222040191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1222040191 is about 34957.6914426568. The cubic root of 1222040191 is about 1069.1250281456.

The spelling of 1222040191 in words is "one billion, two hundred twenty-two million, forty thousand, one hundred ninety-one".