2221094 has 4 divisors (see below), whose sum is σ = 3331644. Its totient is φ = 1110546.

The previous prime is 2221069. The next prime is 2221097. The reversal of 2221094 is 4901222.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555272 + ... + 555275.

It is an arithmetic number, because the mean of its divisors is an integer number (832911).

2^2221094 is an apocalyptic number.

2221094 is a deficient number, since it is larger than the sum of its proper divisors (1110550).

2221094 is a wasteful number, since it uses less digits than its factorization.

2221094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110549.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2221094 is about 1490.3335197197. Note that the first 3 decimals coincide. The cubic root of 2221094 is about 130.4735000972.

The spelling of 2221094 in words is "two million, two hundred twenty-one thousand, ninety-four".