2211995 has 4 divisors (see below), whose sum is σ = 2654400. Its totient is φ = 1769592.

The previous prime is 2211983. The next prime is 2211997. The reversal of 2211995 is 5991122.

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

It is a cyclic number.

It is not a de Polignac number, because 2211995 - 2⁶ = 2211931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211997) 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, 221195 + ... + 221204.

It is an arithmetic number, because the mean of its divisors is an integer number (663600).

2^2211995 is an apocalyptic number.

2211995 is a deficient number, since it is larger than the sum of its proper divisors (442405).

2211995 is an equidigital number, since it uses as much as digits as its factorization.

2211995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442404.

The product of its digits is 1620, while the sum is 29.

The square root of 2211995 is about 1487.2777144837. The cubic root of 2211995 is about 130.2950890348.

The spelling of 2211995 in words is "two million, two hundred eleven thousand, nine hundred ninety-five".