2222816499991 has 2 divisors, whose sum is σ = 2222816499992. Its totient is φ = 2222816499990.

The previous prime is 2222816499941. The next prime is 2222816500001. The reversal of 2222816499991 is 1999946182222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2222816499991 - 2²³ = 2222808111383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2222816499941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111408249995 + 1111408249996.

It is an arithmetic number, because the mean of its divisors is an integer number (1111408249996).

Almost surely, 2^{2222816499991} is an apocalyptic number.

2222816499991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2222816499991 is an equidigital number, since it uses as much as digits as its factorization.

2222816499991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20155392, while the sum is 64.

The spelling of 2222816499991 in words is "two trillion, two hundred twenty-two billion, eight hundred sixteen million, four hundred ninety-nine thousand, nine hundred ninety-one".