2221712 has 20 divisors (see below), whose sum is σ = 4333056. Its totient is φ = 1103520.

The previous prime is 2221711. The next prime is 2221721. The reversal of 2221712 is 2171222.

It is not an unprimeable number, because it can be changed into a prime (2221711) 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, 2693 + ... + 3419.

2^2221712 is an apocalyptic number.

It is an amenable number.

2221712 is a deficient number, since it is larger than the sum of its proper divisors (2111344).

2221712 is a wasteful number, since it uses less digits than its factorization.

2221712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926 (or 920 counting only the distinct ones).

The product of its digits is 112, while the sum is 17.

The square root of 2221712 is about 1490.5408414398. The cubic root of 2221712 is about 130.4856000122.

Adding to 2221712 its reverse (2171222), we get a palindrome (4392934).

The spelling of 2221712 in words is "two million, two hundred twenty-one thousand, seven hundred twelve".