13212212255331 has 16 divisors (see below), whose sum is σ = 17816641476480. Its totient is φ = 8708488145280.

The previous prime is 13212212255327. The next prime is 13212212255351. The reversal of 13212212255331 is 13355221221231.

It is not a de Polignac number, because 13212212255331 - 2² = 13212212255327 is a prime.

It is a super-2 number, since 2×13212212255331² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13212212255292 and 13212212255301.

It is not an unprimeable number, because it can be changed into a prime (13212212255311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65633865 + ... + 65834858.

It is an arithmetic number, because the mean of its divisors is an integer number (1113540092280).

Almost surely, 2^{13212212255331} is an apocalyptic number.

13212212255331 is a deficient number, since it is larger than the sum of its proper divisors (4604429221149).

13212212255331 is a wasteful number, since it uses less digits than its factorization.

13212212255331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131469106.

The product of its digits is 21600, while the sum is 33.

Adding to 13212212255331 its reverse (13355221221231), we get a palindrome (26567433476562).

The spelling of 13212212255331 in words is "thirteen trillion, two hundred twelve billion, two hundred twelve million, two hundred fifty-five thousand, three hundred thirty-one".