2211994 has 4 divisors (see below), whose sum is σ = 3317994. Its totient is φ = 1105996.

The previous prime is 2211983. The next prime is 2211997. The reversal of 2211994 is 4991122.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1334025 + 877969 = 1155^2 + 937^2 .

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 as a sum of consecutive naturals, namely, 552997 + ... + 553000.

2^2211994 is an apocalyptic number.

2211994 is a deficient number, since it is larger than the sum of its proper divisors (1106000).

2211994 is a wasteful number, since it uses less digits than its factorization.

2211994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1105999.

The product of its digits is 1296, while the sum is 28.

The square root of 2211994 is about 1487.2773782990. The cubic root of 2211994 is about 130.2950694002.

The spelling of 2211994 in words is "two million, two hundred eleven thousand, nine hundred ninety-four".