22212322 has 8 divisors (see below), whose sum is σ = 36347472. Its totient is φ = 10096500.

The previous prime is 22212301. The next prime is 22212329. The reversal of 22212322 is 22321222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 22212296 and 22212305.

It is not an unprimeable number, because it can be changed into a prime (22212329) 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, 504804 + ... + 504847.

It is an arithmetic number, because the mean of its divisors is an integer number (4543434).

Almost surely, 2^22212322 is an apocalyptic number.

22212322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22212322 is a deficient number, since it is larger than the sum of its proper divisors (14135150).

22212322 is a wasteful number, since it uses less digits than its factorization.

22212322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009664.

The product of its digits is 192, while the sum is 16.

The square root of 22212322 is about 4712.9950137890. The cubic root of 22212322 is about 281.1024647115.

Adding to 22212322 its reverse (22321222), we get a palindrome (44533544).

Subtracting 22212322 from its reverse (22321222), we obtain a square (108900 = 330²).

It can be divided in two parts, 222 and 12322, that added together give a square (12544 = 112²).

The spelling of 22212322 in words is "twenty-two million, two hundred twelve thousand, three hundred twenty-two".