11011222120091 has 2 divisors, whose sum is σ = 11011222120092. Its totient is φ = 11011222120090.

The previous prime is 11011222119979. The next prime is 11011222120139. The reversal of 11011222120091 is 19002122211011.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11011222120091 - 2¹⁰ = 11011222119067 is a prime.

It is a super-3 number, since 3×11011222120091³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (11011222125091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505611060045 + 5505611060046.

It is an arithmetic number, because the mean of its divisors is an integer number (5505611060046).

Almost surely, 2^{11011222120091} is an apocalyptic number.

11011222120091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11011222120091 is an equidigital number, since it uses as much as digits as its factorization.

11011222120091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 11011222120091 in words is "eleven trillion, eleven billion, two hundred twenty-two million, one hundred twenty thousand, ninety-one".