11121011220091 has 2 divisors, whose sum is σ = 11121011220092. Its totient is φ = 11121011220090.

The previous prime is 11121011220073. The next prime is 11121011220127. The reversal of 11121011220091 is 19002211012111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11121011220091 - 2¹⁵ = 11121011187323 is a prime.

It is not a weakly prime, because it can be changed into another prime (11121011220041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560505610045 + 5560505610046.

It is an arithmetic number, because the mean of its divisors is an integer number (5560505610046).

Almost surely, 2^{11121011220091} is an apocalyptic number.

11121011220091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121011220091 is an equidigital number, since it uses as much as digits as its factorization.

11121011220091 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 11121011220091 in words is "eleven trillion, one hundred twenty-one billion, eleven million, two hundred twenty thousand, ninety-one".