21311331201322 has 16 divisors (see below), whose sum is σ = 32065887078720. Its totient is φ = 10622720408608.

The previous prime is 21311331201313. The next prime is 21311331201331. The reversal of 21311331201322 is 22310213311312.

It is an interprime number because it is at equal distance from previous prime (21311331201313) and next prime (21311331201331).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2218048 + ... + 6895099.

It is an arithmetic number, because the mean of its divisors is an integer number (2004117942420).

Almost surely, 2^{21311331201322} is an apocalyptic number.

21311331201322 is a deficient number, since it is larger than the sum of its proper divisors (10754555877398).

21311331201322 is a wasteful number, since it uses less digits than its factorization.

21311331201322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9116765.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 21311331201322 its reverse (22310213311312), we get a palindrome (43621544512634).

The spelling of 21311331201322 in words is "twenty-one trillion, three hundred eleven billion, three hundred thirty-one million, two hundred one thousand, three hundred twenty-two".