10040020125217 has 2 divisors, whose sum is σ = 10040020125218. Its totient is φ = 10040020125216.

The previous prime is 10040020125139. The next prime is 10040020125251. The reversal of 10040020125217 is 71252102004001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6214256251281 + 3825763873936 = 2492841^2 + 1955956^2 .

It is a cyclic number.

It is not a de Polignac number, because 10040020125217 - 2²⁷ = 10039885907489 is a prime.

It is a super-2 number, since 2×10040020125217² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10040020125191 and 10040020125200.

It is not a weakly prime, because it can be changed into another prime (10040020125257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5020010062608 + 5020010062609.

It is an arithmetic number, because the mean of its divisors is an integer number (5020010062609).

Almost surely, 2^{10040020125217} is an apocalyptic number.

It is an amenable number.

10040020125217 is a deficient number, since it is larger than the sum of its proper divisors (1).

10040020125217 is an equidigital number, since it uses as much as digits as its factorization.

10040020125217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 10040020125217 its reverse (71252102004001), we get a palindrome (81292122129218).

The spelling of 10040020125217 in words is "ten trillion, forty billion, twenty million, one hundred twenty-five thousand, two hundred seventeen".