11214220342991 has 2 divisors, whose sum is σ = 11214220342992. Its totient is φ = 11214220342990.

The previous prime is 11214220342957. The next prime is 11214220343017. The reversal of 11214220342991 is 19924302241211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11214220342991 - 2²² = 11214216148687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11214220342921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5607110171495 + 5607110171496.

It is an arithmetic number, because the mean of its divisors is an integer number (5607110171496).

Almost surely, 2^{11214220342991} is an apocalyptic number.

11214220342991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11214220342991 is an equidigital number, since it uses as much as digits as its factorization.

11214220342991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 11214220342991 in words is "eleven trillion, two hundred fourteen billion, two hundred twenty million, three hundred forty-two thousand, nine hundred ninety-one".