10012122217 has 2 divisors, whose sum is σ = 10012122218. Its totient is φ = 10012122216.

The previous prime is 10012122179. The next prime is 10012122277. The reversal of 10012122217 is 71222121001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8400822336 + 1611299881 = 91656^2 + 40141^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10012122217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10012122194 and 10012122203.

It is not a weakly prime, because it can be changed into another prime (10012122277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006061108 + 5006061109.

It is an arithmetic number, because the mean of its divisors is an integer number (5006061109).

Almost surely, 2^10012122217 is an apocalyptic number.

It is an amenable number.

10012122217 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012122217 is an equidigital number, since it uses as much as digits as its factorization.

10012122217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 10012122217 its reverse (71222121001), we get a palindrome (81234243218).

The spelling of 10012122217 in words is "ten billion, twelve million, one hundred twenty-two thousand, two hundred seventeen".