1222302311 has 2 divisors, whose sum is σ = 1222302312. Its totient is φ = 1222302310.

The previous prime is 1222302293. The next prime is 1222302331. The reversal of 1222302311 is 1132032221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1222302311 - 2¹⁸ = 1222040167 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1222302311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222302331) 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, 611151155 + 611151156.

It is an arithmetic number, because the mean of its divisors is an integer number (611151156).

Almost surely, 2^1222302311 is an apocalyptic number.

1222302311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222302311 is an equidigital number, since it uses as much as digits as its factorization.

1222302311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1222302311 is about 34961.4403450430. The cubic root of 1222302311 is about 1069.2014628980.

Adding to 1222302311 its reverse (1132032221), we get a palindrome (2354334532).

The spelling of 1222302311 in words is "one billion, two hundred twenty-two million, three hundred two thousand, three hundred eleven".