2221004 has 6 divisors (see below), whose sum is σ = 3886764. Its totient is φ = 1110500.

The previous prime is 2220979. The next prime is 2221007. The reversal of 2221004 is 4001222.

2221004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2221007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277622 + ... + 277629.

It is an arithmetic number, because the mean of its divisors is an integer number (647794).

2^2221004 is an apocalyptic number.

It is an amenable number.

2221004 is a deficient number, since it is larger than the sum of its proper divisors (1665760).

2221004 is a wasteful number, since it uses less digits than its factorization.

2221004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555255 (or 555253 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 2221004 is about 1490.3033248302. The cubic root of 2221004 is about 130.4717377864.

Adding to 2221004 its reverse (4001222), we get a palindrome (6222226).

The spelling of 2221004 in words is "two million, two hundred twenty-one thousand, four".