22321003381 has 2 divisors, whose sum is σ = 22321003382. Its totient is φ = 22321003380.

The previous prime is 22321003379. The next prime is 22321003391. The reversal of 22321003381 is 18330012322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20287444356 + 2033559025 = 142434^2 + 45095^2 .

It is a cyclic number.

It is not a de Polignac number, because 22321003381 - 2¹ = 22321003379 is a prime.

It is a super-3 number, since 3×22321003381³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 22321003379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22321003391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11160501690 + 11160501691.

It is an arithmetic number, because the mean of its divisors is an integer number (11160501691).

Almost surely, 2^22321003381 is an apocalyptic number.

It is an amenable number.

22321003381 is a deficient number, since it is larger than the sum of its proper divisors (1).

22321003381 is an equidigital number, since it uses as much as digits as its factorization.

22321003381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 22321003381 in words is "twenty-two billion, three hundred twenty-one million, three thousand, three hundred eighty-one".