1222140347 has 2 divisors, whose sum is σ = 1222140348. Its totient is φ = 1222140346.

The previous prime is 1222140331. The next prime is 1222140371. The reversal of 1222140347 is 7430412221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222140347 - 2⁴ = 1222140331 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222140317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611070173 + 611070174.

It is an arithmetic number, because the mean of its divisors is an integer number (611070174).

Almost surely, 2^1222140347 is an apocalyptic number.

1222140347 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222140347 is an equidigital number, since it uses as much as digits as its factorization.

1222140347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 1222140347 is about 34959.1239449732. The cubic root of 1222140347 is about 1069.1542351395.

Adding to 1222140347 its reverse (7430412221), we get a palindrome (8652552568).

The spelling of 1222140347 in words is "one billion, two hundred twenty-two million, one hundred forty thousand, three hundred forty-seven".