2211020201191 has 4 divisors (see below), whose sum is σ = 2211584384800. Its totient is φ = 2210456017584.

The previous prime is 2211020201119. The next prime is 2211020201213. The reversal of 2211020201191 is 1911020201122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211020201191 is a prime.

It is a super-2 number, since 2×2211020201191² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211020204191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282085926 + ... + 282093763.

It is an arithmetic number, because the mean of its divisors is an integer number (552896096200).

Almost surely, 2^{2211020201191} is an apocalyptic number.

2211020201191 is a deficient number, since it is larger than the sum of its proper divisors (564183609).

2211020201191 is an equidigital number, since it uses as much as digits as its factorization.

2211020201191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564183608.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 2211020201191 in words is "two trillion, two hundred eleven billion, twenty million, two hundred one thousand, one hundred ninety-one".