22223234021 has 2 divisors, whose sum is σ = 22223234022. Its totient is φ = 22223234020.

The previous prime is 22223233993. The next prime is 22223234063. The reversal of 22223234021 is 12043232222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17360961121 + 4862272900 = 131761^2 + 69730^2 .

It is a cyclic number.

It is not a de Polignac number, because 22223234021 - 2¹⁴ = 22223217637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22223234321) 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, 11111617010 + 11111617011.

It is an arithmetic number, because the mean of its divisors is an integer number (11111617011).

Almost surely, 2^22223234021 is an apocalyptic number.

It is an amenable number.

22223234021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22223234021 is an equidigital number, since it uses as much as digits as its factorization.

22223234021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 22223234021 its reverse (12043232222), we get a palindrome (34266466243).

The spelling of 22223234021 in words is "twenty-two billion, two hundred twenty-three million, two hundred thirty-four thousand, twenty-one".