22283213 has 12 divisors (see below), whose sum is σ = 23519412. Its totient is φ = 21098880.

The previous prime is 22283207. The next prime is 22283227. The reversal of 22283213 is 31238222.

It can be written as a sum of positive squares in 6 ways, for example, as 1471369 + 20811844 = 1213^2 + 4562^2 .

It is not a de Polignac number, because 22283213 - 2⁸ = 22282957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22283263) 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 in 11 ways as a sum of consecutive naturals, for example, 55931 + ... + 56327.

It is an arithmetic number, because the mean of its divisors is an integer number (1959951).

Almost surely, 2^22283213 is an apocalyptic number.

It is an amenable number.

22283213 is a deficient number, since it is larger than the sum of its proper divisors (1236199).

22283213 is an equidigital number, since it uses as much as digits as its factorization.

22283213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 475 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 22283213 is about 4720.5098241609. The cubic root of 22283213 is about 281.4011948869.

The spelling of 22283213 in words is "twenty-two million, two hundred eighty-three thousand, two hundred thirteen".