1221233230319 has 2 divisors, whose sum is σ = 1221233230320. Its totient is φ = 1221233230318.

The previous prime is 1221233230307. The next prime is 1221233230403. The reversal of 1221233230319 is 9130323321221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1221233230319 - 2²⁴ = 1221216453103 is a prime.

It is a super-2 number, since 2×1221233230319² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1221233230219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610616615159 + 610616615160.

It is an arithmetic number, because the mean of its divisors is an integer number (610616615160).

Almost surely, 2^{1221233230319} is an apocalyptic number.

1221233230319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221233230319 is an equidigital number, since it uses as much as digits as its factorization.

1221233230319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 32.

The spelling of 1221233230319 in words is "one trillion, two hundred twenty-one billion, two hundred thirty-three million, two hundred thirty thousand, three hundred nineteen".