10021022011993 has 2 divisors, whose sum is σ = 10021022011994. Its totient is φ = 10021022011992.

The previous prime is 10021022011961. The next prime is 10021022012051. The reversal of 10021022011993 is 39911022012001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9568183189504 + 452838822489 = 3093248^2 + 672933^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021022011993 - 2⁵ = 10021022011961 is a prime.

It is not a weakly prime, because it can be changed into another prime (10021022018993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010511005996 + 5010511005997.

It is an arithmetic number, because the mean of its divisors is an integer number (5010511005997).

Almost surely, 2^{10021022011993} is an apocalyptic number.

It is an amenable number.

10021022011993 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021022011993 is an equidigital number, since it uses as much as digits as its factorization.

10021022011993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

Adding to 10021022011993 its reverse (39911022012001), we get a palindrome (49932044023994).

The spelling of 10021022011993 in words is "ten trillion, twenty-one billion, twenty-two million, eleven thousand, nine hundred ninety-three".