12211320101 has 2 divisors, whose sum is σ = 12211320102. Its totient is φ = 12211320100.

The previous prime is 12211320091. The next prime is 12211320139. The reversal of 12211320101 is 10102311221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9535327201 + 2675992900 = 97649^2 + 51730^2 .

It is an emirp because it is prime and its reverse (10102311221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12211320101 - 2¹⁰ = 12211319077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211320161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105660050 + 6105660051.

It is an arithmetic number, because the mean of its divisors is an integer number (6105660051).

Almost surely, 2^12211320101 is an apocalyptic number.

It is an amenable number.

12211320101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211320101 is an equidigital number, since it uses as much as digits as its factorization.

12211320101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12211320101 its reverse (10102311221), we get a palindrome (22313631322).

The spelling of 12211320101 in words is "twelve billion, two hundred eleven million, three hundred twenty thousand, one hundred one".