22334021 has 2 divisors, whose sum is σ = 22334022. Its totient is φ = 22334020.

The previous prime is 22334017. The next prime is 22334069. The reversal of 22334021 is 12043322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22221796 + 112225 = 4714^2 + 335^2 .

It is a cyclic number.

It is not a de Polignac number, because 22334021 - 2² = 22334017 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22334621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11167010 + 11167011.

It is an arithmetic number, because the mean of its divisors is an integer number (11167011).

Almost surely, 2^22334021 is an apocalyptic number.

It is an amenable number.

22334021 is a deficient number, since it is larger than the sum of its proper divisors (1).

22334021 is an equidigital number, since it uses as much as digits as its factorization.

22334021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 22334021 is about 4725.8883820928. Note that the first 3 decimals coincide. The cubic root of 22334021 is about 281.6149070225.

Adding to 22334021 its reverse (12043322), we get a palindrome (34377343).

The spelling of 22334021 in words is "twenty-two million, three hundred thirty-four thousand, twenty-one".