10510720217 has 2 divisors, whose sum is σ = 10510720218. Its totient is φ = 10510720216.

The previous prime is 10510720201. The next prime is 10510720243. The reversal of 10510720217 is 71202701501.

It is an a-pointer prime, because the next prime (10510720243) can be obtained adding 10510720217 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10361000521 + 149719696 = 101789^2 + 12236^2 .

It is a cyclic number.

It is not a de Polignac number, because 10510720217 - 2⁴ = 10510720201 is a prime.

It is a super-2 number, since 2×10510720217² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10510720117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5255360108 + 5255360109.

It is an arithmetic number, because the mean of its divisors is an integer number (5255360109).

Almost surely, 2^10510720217 is an apocalyptic number.

It is an amenable number.

10510720217 is a deficient number, since it is larger than the sum of its proper divisors (1).

10510720217 is an equidigital number, since it uses as much as digits as its factorization.

10510720217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 980, while the sum is 26.

The spelling of 10510720217 in words is "ten billion, five hundred ten million, seven hundred twenty thousand, two hundred seventeen".