22031333021321 has 8 divisors (see below), whose sum is σ = 23857134102984. Its totient is φ = 20224258104960.

The previous prime is 22031333021297. The next prime is 22031333021339. The reversal of 22031333021321 is 12312033313022.

It can be written as a sum of positive squares in 4 ways, for example, as 1122616535296 + 20908716486025 = 1059536^2 + 4572605^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-22031333021321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22031333021021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4681538876 + ... + 4681543581.

It is an arithmetic number, because the mean of its divisors is an integer number (2982141762873).

Almost surely, 2^{22031333021321} is an apocalyptic number.

It is an amenable number.

22031333021321 is a deficient number, since it is larger than the sum of its proper divisors (1825801081663).

22031333021321 is a wasteful number, since it uses less digits than its factorization.

22031333021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9363082651.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 22031333021321 its reverse (12312033313022), we get a palindrome (34343366334343).

The spelling of 22031333021321 in words is "twenty-two trillion, thirty-one billion, three hundred thirty-three million, twenty-one thousand, three hundred twenty-one".