2201131191 has 16 divisors (see below), whose sum is σ = 3357050624. Its totient is φ = 1256684544.

The previous prime is 2201131159. The next prime is 2201131217. The reversal of 2201131191 is 1911311022.

It is a happy number.

It is not a de Polignac number, because 2201131191 - 2⁵ = 2201131159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201131091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21241 + ... + 69666.

It is an arithmetic number, because the mean of its divisors is an integer number (209815664).

Almost surely, 2^2201131191 is an apocalyptic number.

2201131191 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2201131191 is a deficient number, since it is larger than the sum of its proper divisors (1155919433).

2201131191 is a wasteful number, since it uses less digits than its factorization.

2201131191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92070.

The product of its (nonzero) digits is 108, while the sum is 21.

The square root of 2201131191 is about 46916.2145851517. The cubic root of 2201131191 is about 1300.8143203750.

The spelling of 2201131191 in words is "two billion, two hundred one million, one hundred thirty-one thousand, one hundred ninety-one".