10112211209 has 2 divisors, whose sum is σ = 10112211210. Its totient is φ = 10112211208.

The previous prime is 10112211181. The next prime is 10112211223. The reversal of 10112211209 is 90211221101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10081164025 + 31047184 = 100405^2 + 5572^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10112211209 is a prime.

It is not a weakly prime, because it can be changed into another prime (10112211299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5056105604 + 5056105605.

It is an arithmetic number, because the mean of its divisors is an integer number (5056105605).

Almost surely, 2^10112211209 is an apocalyptic number.

It is an amenable number.

10112211209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10112211209 is an equidigital number, since it uses as much as digits as its factorization.

10112211209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 10112211209 in words is "ten billion, one hundred twelve million, two hundred eleven thousand, two hundred nine".