1222419907 has 2 divisors, whose sum is σ = 1222419908. Its totient is φ = 1222419906.

The previous prime is 1222419889. The next prime is 1222419917. The reversal of 1222419907 is 7099142221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222419907 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222419917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611209953 + 611209954.

It is an arithmetic number, because the mean of its divisors is an integer number (611209954).

Almost surely, 2^1222419907 is an apocalyptic number.

1222419907 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222419907 is an equidigital number, since it uses as much as digits as its factorization.

1222419907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1222419907 is about 34963.1221002930. The cubic root of 1222419907 is about 1069.2357505921.

It can be divided in two parts, 12224 and 19907, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 1222419907 in words is "one billion, two hundred twenty-two million, four hundred nineteen thousand, nine hundred seven".