91120221200111 has 8 divisors (see below), whose sum is σ = 92084289351360. Its totient is φ = 90161009815968.

The previous prime is 91120221200101. The next prime is 91120221200119. The reversal of 91120221200111 is 11100212202119.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91120221200111 - 2³⁸ = 90845343293167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91120221200119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1214154056 + ... + 1214229101.

It is an arithmetic number, because the mean of its divisors is an integer number (11510536168920).

Almost surely, 2^{91120221200111} is an apocalyptic number.

91120221200111 is a deficient number, since it is larger than the sum of its proper divisors (964068151249).

91120221200111 is a wasteful number, since it uses less digits than its factorization.

91120221200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2428383553.

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

The spelling of 91120221200111 in words is "ninety-one trillion, one hundred twenty billion, two hundred twenty-one million, two hundred thousand, one hundred eleven".