12211133449 has 2 divisors, whose sum is σ = 12211133450. Its totient is φ = 12211133448.

The previous prime is 12211133419. The next prime is 12211133521. The reversal of 12211133449 is 94433111221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6441667600 + 5769465849 = 80260^2 + 75957^2 .

It is an emirp because it is prime and its reverse (94433111221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12211133449 - 2¹⁹ = 12210609161 is a prime.

It is a super-2 number, since 2×12211133449² (a number of 21 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 12211133449.

It is not a weakly prime, because it can be changed into another prime (12211133419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105566724 + 6105566725.

It is an arithmetic number, because the mean of its divisors is an integer number (6105566725).

Almost surely, 2^12211133449 is an apocalyptic number.

It is an amenable number.

12211133449 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211133449 is an equidigital number, since it uses as much as digits as its factorization.

12211133449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The spelling of 12211133449 in words is "twelve billion, two hundred eleven million, one hundred thirty-three thousand, four hundred forty-nine".