2212564 has 6 divisors (see below), whose sum is σ = 3871994. Its totient is φ = 1106280.

The previous prime is 2212547. The next prime is 2212571. The reversal of 2212564 is 4652122.

It can be written as a sum of positive squares in only one way, i.e., 1192464 + 1020100 = 1092^2 + 1010^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276567 + ... + 276574.

2^2212564 is an apocalyptic number.

It is an amenable number.

2212564 is a deficient number, since it is larger than the sum of its proper divisors (1659430).

2212564 is a wasteful number, since it uses less digits than its factorization.

2212564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553145 (or 553143 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 2212564 is about 1487.4689912734. The cubic root of 2212564 is about 130.3062601796.

Adding to 2212564 its reverse (4652122), we get a palindrome (6864686).

The spelling of 2212564 in words is "two million, two hundred twelve thousand, five hundred sixty-four".