22213412 has 12 divisors (see below), whose sum is σ = 41863836. Its totient is φ = 10252320.

The previous prime is 22213403. The next prime is 22213417. The reversal of 22213412 is 21431222.

It can be written as a sum of positive squares in 2 ways, for example, as 1999396 + 20214016 = 1414^2 + 4496^2 .

It is not an unprimeable number, because it can be changed into a prime (22213417) 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, 213539 + ... + 213642.

It is an arithmetic number, because the mean of its divisors is an integer number (3488653).

Almost surely, 2^22213412 is an apocalyptic number.

It is an amenable number.

22213412 is a deficient number, since it is larger than the sum of its proper divisors (19650424).

22213412 is a wasteful number, since it uses less digits than its factorization.

22213412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427198 (or 427196 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 22213412 is about 4713.1106500909. The cubic root of 22213412 is about 281.1070627101.

Adding to 22213412 its reverse (21431222), we get a palindrome (43644634).

The spelling of 22213412 in words is "twenty-two million, two hundred thirteen thousand, four hundred twelve".