12211434453 has 16 divisors (see below), whose sum is σ = 16731023040. Its totient is φ = 7916639616.

The previous prime is 12211434449. The next prime is 12211434457. The reversal of 12211434453 is 35443411221.

It is an interprime number because it is at equal distance from previous prime (12211434449) and next prime (12211434457).

It is not a de Polignac number, because 12211434453 - 2² = 12211434449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12211434453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211434457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182833 + ... + 240521.

It is an arithmetic number, because the mean of its divisors is an integer number (1045688940).

Almost surely, 2^12211434453 is an apocalyptic number.

It is an amenable number.

12211434453 is a deficient number, since it is larger than the sum of its proper divisors (4519588587).

12211434453 is a wasteful number, since it uses less digits than its factorization.

12211434453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59636.

The product of its digits is 11520, while the sum is 30.

Adding to 12211434453 its reverse (35443411221), we get a palindrome (47654845674).

The spelling of 12211434453 in words is "twelve billion, two hundred eleven million, four hundred thirty-four thousand, four hundred fifty-three".