1121100122091 has 4 divisors (see below), whose sum is σ = 1494800162792. Its totient is φ = 747400081392.

The previous prime is 1121100122083. The next prime is 1121100122099. The reversal of 1121100122091 is 1902210011211.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1121100122083) and next prime (1121100122099).

It is not a de Polignac number, because 1121100122091 - 2³ = 1121100122083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121100122099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186850020346 + ... + 186850020351.

It is an arithmetic number, because the mean of its divisors is an integer number (373700040698).

Almost surely, 2^{1121100122091} is an apocalyptic number.

1121100122091 is a deficient number, since it is larger than the sum of its proper divisors (373700040701).

1121100122091 is an equidigital number, since it uses as much as digits as its factorization.

1121100122091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373700040700.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 1121100122091 in words is "one trillion, one hundred twenty-one billion, one hundred million, one hundred twenty-two thousand, ninety-one".