2201111311 has 12 divisors (see below), whose sum is σ = 2564507520. Its totient is φ = 1883696640.

The previous prime is 2201111309. The next prime is 2201111347. The reversal of 2201111311 is 1131111022.

It is a happy number.

It is not a de Polignac number, because 2201111311 - 2¹ = 2201111309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201111291 and 2201111300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201111711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3631 + ... + 66448.

It is an arithmetic number, because the mean of its divisors is an integer number (213708960).

Almost surely, 2^2201111311 is an apocalyptic number.

2201111311 is a deficient number, since it is larger than the sum of its proper divisors (363396209).

2201111311 is an equidigital number, since it uses as much as digits as its factorization.

2201111311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70734 (or 70727 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 2201111311 is about 46916.0027176229. The cubic root of 2201111311 is about 1300.8104041664.

Adding to 2201111311 its reverse (1131111022), we get a palindrome (3332222333).

The spelling of 2201111311 in words is "two billion, two hundred one million, one hundred eleven thousand, three hundred eleven".