22002334421 has 2 divisors, whose sum is σ = 22002334422. Its totient is φ = 22002334420.

The previous prime is 22002334301. The next prime is 22002334429. The reversal of 22002334421 is 12443320022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14119380625 + 7882953796 = 118825^2 + 88786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22002334421 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22002334429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11001167210 + 11001167211.

It is an arithmetic number, because the mean of its divisors is an integer number (11001167211).

Almost surely, 2^22002334421 is an apocalyptic number.

It is an amenable number.

22002334421 is a deficient number, since it is larger than the sum of its proper divisors (1).

22002334421 is an equidigital number, since it uses as much as digits as its factorization.

22002334421 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 22002334421 its reverse (12443320022), we get a palindrome (34445654443).

The spelling of 22002334421 in words is "twenty-two billion, two million, three hundred thirty-four thousand, four hundred twenty-one".