10111222211009 has 2 divisors, whose sum is σ = 10111222211010. Its totient is φ = 10111222211008.

The previous prime is 10111222211003. The next prime is 10111222211053. The reversal of 10111222211009 is 90011222211101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9734805604225 + 376416606784 = 3120065^2 + 613528^2 .

It is an emirp because it is prime and its reverse (90011222211101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10111222211009 - 2⁴ = 10111222210993 is a prime.

It is not a weakly prime, because it can be changed into another prime (10111222211003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055611105504 + 5055611105505.

It is an arithmetic number, because the mean of its divisors is an integer number (5055611105505).

Almost surely, 2^{10111222211009} is an apocalyptic number.

It is an amenable number.

10111222211009 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111222211009 is an equidigital number, since it uses as much as digits as its factorization.

10111222211009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 10111222211009 in words is "ten trillion, one hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, nine".