2211320311999 has 2 divisors, whose sum is σ = 2211320312000. Its totient is φ = 2211320311998.

The previous prime is 2211320311973. The next prime is 2211320312017. The reversal of 2211320311999 is 9991130231122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2211320311999 - 2¹¹ = 2211320309951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2211320311939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105660155999 + 1105660156000.

It is an arithmetic number, because the mean of its divisors is an integer number (1105660156000).

Almost surely, 2^{2211320311999} is an apocalyptic number.

2211320311999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2211320311999 is an equidigital number, since it uses as much as digits as its factorization.

2211320311999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 43.

The spelling of 2211320311999 in words is "two trillion, two hundred eleven billion, three hundred twenty million, three hundred eleven thousand, nine hundred ninety-nine".