13012221312233 has 16 divisors (see below), whose sum is σ = 15287510439936. Its totient is φ = 10919042797440.

The previous prime is 13012221312229. The next prime is 13012221312253. The reversal of 13012221312233 is 33221312221031.

It is a cyclic number.

It is not a de Polignac number, because 13012221312233 - 2² = 13012221312229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13012221312203) 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, 3968216 + ... + 6463062.

It is an arithmetic number, because the mean of its divisors is an integer number (955469402496).

Almost surely, 2^{13012221312233} is an apocalyptic number.

13012221312233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13012221312233 is a deficient number, since it is larger than the sum of its proper divisors (2275289127703).

13012221312233 is a wasteful number, since it uses less digits than its factorization.

13012221312233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2531344.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 13012221312233 its reverse (33221312221031), we get a palindrome (46233533533264).

The spelling of 13012221312233 in words is "thirteen trillion, twelve billion, two hundred twenty-one million, three hundred twelve thousand, two hundred thirty-three".