10178630221217 has 2 divisors, whose sum is σ = 10178630221218. Its totient is φ = 10178630221216.

The previous prime is 10178630221189. The next prime is 10178630221237. The reversal of 10178630221217 is 71212203687101.

10178630221217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10176348821521 + 2281399696 = 3190039^2 + 47764^2 .

It is a cyclic number.

It is not a de Polignac number, because 10178630221217 - 2⁶ = 10178630221153 is a prime.

It is a super-2 number, since 2×10178630221217² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10178630221237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5089315110608 + 5089315110609.

It is an arithmetic number, because the mean of its divisors is an integer number (5089315110609).

Almost surely, 2^{10178630221217} is an apocalyptic number.

It is an amenable number.

10178630221217 is a deficient number, since it is larger than the sum of its proper divisors (1).

10178630221217 is an equidigital number, since it uses as much as digits as its factorization.

10178630221217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 41.

The spelling of 10178630221217 in words is "ten trillion, one hundred seventy-eight billion, six hundred thirty million, two hundred twenty-one thousand, two hundred seventeen".