1222211299 has 2 divisors, whose sum is σ = 1222211300. Its totient is φ = 1222211298.

The previous prime is 1222211281. The next prime is 1222211303. The reversal of 1222211299 is 9921122221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222211299 - 2¹⁷ = 1222080227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222211299.

It is not a weakly prime, because it can be changed into another prime (1222211399) 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, 611105649 + 611105650.

It is an arithmetic number, because the mean of its divisors is an integer number (611105650).

Almost surely, 2^1222211299 is an apocalyptic number.

1222211299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222211299 is an equidigital number, since it uses as much as digits as its factorization.

1222211299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 31.

The square root of 1222211299 is about 34960.1387153999. The cubic root of 1222211299 is about 1069.1749248427.

It can be divided in two parts, 1222 and 211299, that added together give a square (212521 = 461²).

The spelling of 1222211299 in words is "one billion, two hundred twenty-two million, two hundred eleven thousand, two hundred ninety-nine".