11220001973 has 2 divisors, whose sum is σ = 11220001974. Its totient is φ = 11220001972.

The previous prime is 11220001967. The next prime is 11220001981. The reversal of 11220001973 is 37910002211.

11220001973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7846947889 + 3373054084 = 88583^2 + 58078^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220001973 - 2²⁰ = 11218953397 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 (11220001963) 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, 5610000986 + 5610000987.

It is an arithmetic number, because the mean of its divisors is an integer number (5610000987).

Almost surely, 2^11220001973 is an apocalyptic number.

It is an amenable number.

11220001973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220001973 is an equidigital number, since it uses as much as digits as its factorization.

11220001973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 26.

The spelling of 11220001973 in words is "eleven billion, two hundred twenty million, one thousand, nine hundred seventy-three".