22320222 has 8 divisors (see below), whose sum is σ = 44640456. Its totient is φ = 7440072.

The previous prime is 22320211. The next prime is 22320223. The reversal of 22320222 is 22202322.

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

22320222 is an admirable number.

It is a super-3 number, since 3×22320222³ (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 (22320223) 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, 1860013 + ... + 1860024.

It is an arithmetic number, because the mean of its divisors is an integer number (5580057).

Almost surely, 2^22320222 is an apocalyptic number.

22320222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22320222 is a wasteful number, since it uses less digits than its factorization.

22320222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720042.

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 22320222 is about 4724.4282193722. The cubic root of 22320222 is about 281.5568967984.

Adding to 22320222 its reverse (22202322), we get a palindrome (44522544).

The spelling of 22320222 in words is "twenty-two million, three hundred twenty thousand, two hundred twenty-two".