2201091 has 4 divisors (see below), whose sum is σ = 2934792. Its totient is φ = 1467392.

The previous prime is 2201083. The next prime is 2201099. The reversal of 2201091 is 1901022.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2201083) and next prime (2201099).

It is a cyclic number.

It is not a de Polignac number, because 2201091 - 2³ = 2201083 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2201091.

It is not an unprimeable number, because it can be changed into a prime (2201099) 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, 366846 + ... + 366851.

It is an arithmetic number, because the mean of its divisors is an integer number (733698).

2^2201091 is an apocalyptic number.

2201091 is a deficient number, since it is larger than the sum of its proper divisors (733701).

2201091 is an equidigital number, since it uses as much as digits as its factorization.

2201091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733700.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2201091 is about 1483.6074278595. The cubic root of 2201091 is about 130.0806403030.

The spelling of 2201091 in words is "two million, two hundred one thousand, ninety-one".