10000021860097 has 2 divisors, whose sum is σ = 10000021860098. Its totient is φ = 10000021860096.

The previous prime is 10000021860011. The next prime is 10000021860161. The reversal of 10000021860097 is 79006812000001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9867036921856 + 132984938241 = 3141184^2 + 364671^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000021860097 - 2²⁷ = 9999887642369 is a prime.

It is not a weakly prime, because it can be changed into another prime (10000021860397) 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, 5000010930048 + 5000010930049.

It is an arithmetic number, because the mean of its divisors is an integer number (5000010930049).

Almost surely, 2^{10000021860097} is an apocalyptic number.

It is an amenable number.

10000021860097 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000021860097 is an equidigital number, since it uses as much as digits as its factorization.

10000021860097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

Adding to 10000021860097 its reverse (79006812000001), we get a palindrome (89006833860098).

The spelling of 10000021860097 in words is "ten trillion, twenty-one million, eight hundred sixty thousand, ninety-seven".