1222283819 has 2 divisors, whose sum is σ = 1222283820. Its totient is φ = 1222283818.

The previous prime is 1222283807. The next prime is 1222283837. The reversal of 1222283819 is 9183822221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222283819 - 2⁸ = 1222283563 is a prime.

It is a super-2 number, since 2×1222283819² = 2987955468378449522, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1222283849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611141909 + 611141910.

It is an arithmetic number, because the mean of its divisors is an integer number (611141910).

Almost surely, 2^1222283819 is an apocalyptic number.

1222283819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222283819 is an equidigital number, since it uses as much as digits as its factorization.

1222283819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 38.

The square root of 1222283819 is about 34961.1758812543. The cubic root of 1222283819 is about 1069.1960709496.

The spelling of 1222283819 in words is "one billion, two hundred twenty-two million, two hundred eighty-three thousand, eight hundred nineteen".