22313212 has 12 divisors (see below), whose sum is σ = 39785256. Its totient is φ = 10946000.

The previous prime is 22313191. The next prime is 22313219. The reversal of 22313212 is 21231322.

It is a super-3 number, since 3×22313212³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22313219) 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, 52414 + ... + 52837.

It is an arithmetic number, because the mean of its divisors is an integer number (3315438).

Almost surely, 2^22313212 is an apocalyptic number.

It is an amenable number.

22313212 is a deficient number, since it is larger than the sum of its proper divisors (17472044).

22313212 is a wasteful number, since it uses less digits than its factorization.

22313212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105308 (or 105306 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 22313212 is about 4723.6862723936. The cubic root of 22313212 is about 281.5274179920.

Adding to 22313212 its reverse (21231322), we get a palindrome (43544534).

The spelling of 22313212 in words is "twenty-two million, three hundred thirteen thousand, two hundred twelve".