22312211222 has 16 divisors (see below), whose sum is σ = 38286343680. Its totient is φ = 9553166568.

The previous prime is 22312211209. The next prime is 22312211227. The reversal of 22312211222 is 22211221322.

It is a super-3 number, since 3×22312211222³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22312211194 and 22312211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22312211227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752408 + ... + 781499.

It is an arithmetic number, because the mean of its divisors is an integer number (2392896480).

Almost surely, 2^22312211222 is an apocalyptic number.

22312211222 is a deficient number, since it is larger than the sum of its proper divisors (15974132458).

22312211222 is a wasteful number, since it uses less digits than its factorization.

22312211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534955.

The product of its digits is 384, while the sum is 20.

Adding to 22312211222 its reverse (22211221322), we get a palindrome (44523432544).

The spelling of 22312211222 in words is "twenty-two billion, three hundred twelve million, two hundred eleven thousand, two hundred twenty-two".