22001322320312 has 24 divisors (see below), whose sum is σ = 43537935276000. Its totient is φ = 10421678992464.

The previous prime is 22001322320311. The next prime is 22001322320399. The reversal of 22001322320312 is 21302322310022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001322320311) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3809090312 + ... + 3809096087.

It is an arithmetic number, because the mean of its divisors is an integer number (1814080636500).

Almost surely, 2^{22001322320312} is an apocalyptic number.

It is an amenable number.

22001322320312 is a deficient number, since it is larger than the sum of its proper divisors (21536612955688).

22001322320312 is a wasteful number, since it uses less digits than its factorization.

22001322320312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7618186443 (or 7618186420 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 22001322320312 its reverse (21302322310022), we get a palindrome (43303644630334).

The spelling of 22001322320312 in words is "twenty-two trillion, one billion, three hundred twenty-two million, three hundred twenty thousand, three hundred twelve".