12211134473 has 2 divisors, whose sum is σ = 12211134474. Its totient is φ = 12211134472.

The previous prime is 12211134451. The next prime is 12211134499. The reversal of 12211134473 is 37443111221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9787738489 + 2423395984 = 98933^2 + 49228^2 .

It is an emirp because it is prime and its reverse (37443111221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12211134473 - 2¹⁰ = 12211133449 is a prime.

It is a super-2 number, since 2×12211134473² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12211134413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105567236 + 6105567237.

It is an arithmetic number, because the mean of its divisors is an integer number (6105567237).

Almost surely, 2^12211134473 is an apocalyptic number.

It is an amenable number.

12211134473 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211134473 is an equidigital number, since it uses as much as digits as its factorization.

12211134473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 29.

Adding to 12211134473 its reverse (37443111221), we get a palindrome (49654245694).

The spelling of 12211134473 in words is "twelve billion, two hundred eleven million, one hundred thirty-four thousand, four hundred seventy-three".