11223201211091 has 2 divisors, whose sum is σ = 11223201211092. Its totient is φ = 11223201211090.

The previous prime is 11223201211087. The next prime is 11223201211097. The reversal of 11223201211091 is 19011210232211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11223201211091 - 2² = 11223201211087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11223201211091.

It is not a weakly prime, because it can be changed into another prime (11223201211097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611600605545 + 5611600605546.

It is an arithmetic number, because the mean of its divisors is an integer number (5611600605546).

Almost surely, 2^{11223201211091} is an apocalyptic number.

11223201211091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11223201211091 is an equidigital number, since it uses as much as digits as its factorization.

11223201211091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 11223201211091 in words is "eleven trillion, two hundred twenty-three billion, two hundred one million, two hundred eleven thousand, ninety-one".