2201211101091 has 4 divisors (see below), whose sum is σ = 2934948134792. Its totient is φ = 1467474067392.

The previous prime is 2201211101039. The next prime is 2201211101113. The reversal of 2201211101091 is 1901011121022.

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

It is not a de Polignac number, because 2201211101091 - 2¹⁷ = 2201210970019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201211100091) 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, 366868516846 + ... + 366868516851.

It is an arithmetic number, because the mean of its divisors is an integer number (733737033698).

Almost surely, 2^{2201211101091} is an apocalyptic number.

2201211101091 is a deficient number, since it is larger than the sum of its proper divisors (733737033701).

2201211101091 is an equidigital number, since it uses as much as digits as its factorization.

2201211101091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733737033700.

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

The spelling of 2201211101091 in words is "two trillion, two hundred one billion, two hundred eleven million, one hundred one thousand, ninety-one".