22221311312 has 40 divisors (see below), whose sum is σ = 43850383872. Its totient is φ = 10905840000.

The previous prime is 22221311263. The next prime is 22221311317. The reversal of 22221311312 is 21311312222.

It is a super-2 number, since 2×22221311312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221311317) 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, 451937 + ... + 498687.

Almost surely, 2^22221311312 is an apocalyptic number.

It is an amenable number.

22221311312 is a deficient number, since it is larger than the sum of its proper divisors (21629072560).

22221311312 is a wasteful number, since it uses less digits than its factorization.

22221311312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47307 (or 47301 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

Adding to 22221311312 its reverse (21311312222), we get a palindrome (43532623534).

The spelling of 22221311312 in words is "twenty-two billion, two hundred twenty-one million, three hundred eleven thousand, three hundred twelve".