13212233054452 has 6 divisors (see below), whose sum is σ = 23121407845298. Its totient is φ = 6606116527224.

The previous prime is 13212233054437. The next prime is 13212233054459. The reversal of 13212233054452 is 25445033221231.

It can be written as a sum of positive squares in only one way, i.e., 12809269632016 + 402963422436 = 3579004^2 + 634794^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212233054459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1651529131803 + ... + 1651529131810.

Almost surely, 2^{13212233054452} is an apocalyptic number.

It is an amenable number.

13212233054452 is a deficient number, since it is larger than the sum of its proper divisors (9909174790846).

13212233054452 is a wasteful number, since it uses less digits than its factorization.

13212233054452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303058263617 (or 3303058263615 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 13212233054452 its reverse (25445033221231), we get a palindrome (38657266275683).

The spelling of 13212233054452 in words is "thirteen trillion, two hundred twelve billion, two hundred thirty-three million, fifty-four thousand, four hundred fifty-two".