10021000119989 has 2 divisors, whose sum is σ = 10021000119990. Its totient is φ = 10021000119988.

The previous prime is 10021000119959. The next prime is 10021000120051. The reversal of 10021000119989 is 98991100012001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8050935231889 + 1970064888100 = 2837417^2 + 1403590^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021000119989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021000119929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010500059994 + 5010500059995.

It is an arithmetic number, because the mean of its divisors is an integer number (5010500059995).

Almost surely, 2^{10021000119989} is an apocalyptic number.

It is an amenable number.

10021000119989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021000119989 is an equidigital number, since it uses as much as digits as its factorization.

10021000119989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 41.

The spelling of 10021000119989 in words is "ten trillion, twenty-one billion, one hundred nineteen thousand, nine hundred eighty-nine".