22313203021 has 2 divisors, whose sum is σ = 22313203022. Its totient is φ = 22313203020.

The previous prime is 22313203013. The next prime is 22313203039. The reversal of 22313203021 is 12030231322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20949378121 + 1363824900 = 144739^2 + 36930^2 .

It is a cyclic number.

It is not a de Polignac number, because 22313203021 - 2³ = 22313203013 is a prime.

It is a super-3 number, since 3×22313203021³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22313203021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22313203321) 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 as a sum of consecutive naturals, namely, 11156601510 + 11156601511.

It is an arithmetic number, because the mean of its divisors is an integer number (11156601511).

Almost surely, 2^22313203021 is an apocalyptic number.

It is an amenable number.

22313203021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22313203021 is an equidigital number, since it uses as much as digits as its factorization.

22313203021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 22313203021 its reverse (12030231322), we get a palindrome (34343434343).

The spelling of 22313203021 in words is "twenty-two billion, three hundred thirteen million, two hundred three thousand, twenty-one".