22313222 has 8 divisors (see below), whose sum is σ = 33873336. Its totient is φ = 11022112.

The previous prime is 22313219. The next prime is 22313227. The reversal of 22313222 is 22231322.

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

It is a super-3 number, since 3×22313222³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22313222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22313227) 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 3 ways as a sum of consecutive naturals, for example, 67043 + ... + 67374.

It is an arithmetic number, because the mean of its divisors is an integer number (4234167).

Almost surely, 2^22313222 is an apocalyptic number.

22313222 is a deficient number, since it is larger than the sum of its proper divisors (11560114).

22313222 is a wasteful number, since it uses less digits than its factorization.

22313222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134502.

The product of its digits is 288, while the sum is 17.

The square root of 22313222 is about 4723.6873308889. The cubic root of 22313222 is about 281.5274600489.

Adding to 22313222 its reverse (22231322), we get a palindrome (44544544).

It can be divided in two parts, 2231322 and 2, that multiplied together give a palindrome (4462644).

The spelling of 22313222 in words is "twenty-two million, three hundred thirteen thousand, two hundred twenty-two".