22001200209973 has 2 divisors, whose sum is σ = 22001200209974. Its totient is φ = 22001200209972.

The previous prime is 22001200209941. The next prime is 22001200210013. The reversal of 22001200209973 is 37990200210022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21772097259364 + 229102950609 = 4666058^2 + 478647^2 .

It is a cyclic number.

It is not a de Polignac number, because 22001200209973 - 2⁵ = 22001200209941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22001200209913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11000600104986 + 11000600104987.

It is an arithmetic number, because the mean of its divisors is an integer number (11000600104987).

Almost surely, 2^{22001200209973} is an apocalyptic number.

It is an amenable number.

22001200209973 is a deficient number, since it is larger than the sum of its proper divisors (1).

22001200209973 is an equidigital number, since it uses as much as digits as its factorization.

22001200209973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

Adding to 22001200209973 its reverse (37990200210022), we get a palindrome (59991400419995).

The spelling of 22001200209973 in words is "twenty-two trillion, one billion, two hundred million, two hundred nine thousand, nine hundred seventy-three".