1215222367 has 2 divisors, whose sum is σ = 1215222368. Its totient is φ = 1215222366.

The previous prime is 1215222317. The next prime is 1215222383. The reversal of 1215222367 is 7632225121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1215222367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1215222317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607611183 + 607611184.

It is an arithmetic number, because the mean of its divisors is an integer number (607611184).

Almost surely, 2^1215222367 is an apocalyptic number.

1215222367 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215222367 is an equidigital number, since it uses as much as digits as its factorization.

1215222367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 1215222367 is about 34860.0396872981. The cubic root of 1215222367 is about 1067.1330849640.

Adding to 1215222367 its reverse (7632225121), we get a palindrome (8847447488).

The spelling of 1215222367 in words is "one billion, two hundred fifteen million, two hundred twenty-two thousand, three hundred sixty-seven".