11220111120091 has 2 divisors, whose sum is σ = 11220111120092. Its totient is φ = 11220111120090.

The previous prime is 11220111120077. The next prime is 11220111120223. The reversal of 11220111120091 is 19002111102211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11220111120091 - 2¹⁷ = 11220110989019 is a prime.

It is not a weakly prime, because it can be changed into another prime (11220111124091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610055560045 + 5610055560046.

It is an arithmetic number, because the mean of its divisors is an integer number (5610055560046).

Almost surely, 2^{11220111120091} is an apocalyptic number.

11220111120091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220111120091 is an equidigital number, since it uses as much as digits as its factorization.

11220111120091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 11220111120091 in words is "eleven trillion, two hundred twenty billion, one hundred eleven million, one hundred twenty thousand, ninety-one".