1226422919 has 2 divisors, whose sum is σ = 1226422920. Its totient is φ = 1226422918.

The previous prime is 1226422867. The next prime is 1226422931. The reversal of 1226422919 is 9192246221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1226422919 - 2⁸ = 1226422663 is a prime.

It is a super-2 number, since 2×1226422919² = 3008226352496961122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1226422319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613211459 + 613211460.

It is an arithmetic number, because the mean of its divisors is an integer number (613211460).

Almost surely, 2^1226422919 is an apocalyptic number.

1226422919 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226422919 is an equidigital number, since it uses as much as digits as its factorization.

1226422919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 38.

The square root of 1226422919 is about 35020.3215148005. The cubic root of 1226422919 is about 1070.4016074763.

The spelling of 1226422919 in words is "one billion, two hundred twenty-six million, four hundred twenty-two thousand, nine hundred nineteen".