221311321199 has 2 divisors, whose sum is σ = 221311321200. Its totient is φ = 221311321198.

The previous prime is 221311321181. The next prime is 221311321219. The reversal of 221311321199 is 991123113122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221311321199 - 2⁸ = 221311320943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221311321159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110655660599 + 110655660600.

It is an arithmetic number, because the mean of its divisors is an integer number (110655660600).

Almost surely, 2^221311321199 is an apocalyptic number.

221311321199 is a deficient number, since it is larger than the sum of its proper divisors (1).

221311321199 is an equidigital number, since it uses as much as digits as its factorization.

221311321199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 35.

The spelling of 221311321199 in words is "two hundred twenty-one billion, three hundred eleven million, three hundred twenty-one thousand, one hundred ninety-nine".