201102110111209 has 2 divisors, whose sum is σ = 201102110111210. Its totient is φ = 201102110111208.

The previous prime is 201102110111093. The next prime is 201102110111263. The reversal of 201102110111209 is 902111011201102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187521801699600 + 13580308411609 = 13693860^2 + 3685147^2 .

It is a cyclic number.

It is not a de Polignac number, because 201102110111209 - 2¹⁷ = 201102109980137 is a prime.

It is a super-2 number, since 2×201102110111209² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201102110111209.

It is not a weakly prime, because it can be changed into another prime (201102110111009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100551055055604 + 100551055055605.

It is an arithmetic number, because the mean of its divisors is an integer number (100551055055605).

Almost surely, 2^{201102110111209} is an apocalyptic number.

It is an amenable number.

201102110111209 is a deficient number, since it is larger than the sum of its proper divisors (1).

201102110111209 is an equidigital number, since it uses as much as digits as its factorization.

201102110111209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

The spelling of 201102110111209 in words is "two hundred one trillion, one hundred two billion, one hundred ten million, one hundred eleven thousand, two hundred nine".