13221111202012 has 24 divisors (see below), whose sum is σ = 26447925105504. Its totient is φ = 5664968507712.

The previous prime is 13221111202007. The next prime is 13221111202049. The reversal of 13221111202012 is 21020211112231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50784823 + ... + 51044494.

It is an arithmetic number, because the mean of its divisors is an integer number (1101996879396).

Almost surely, 2^{13221111202012} is an apocalyptic number.

It is an amenable number.

13221111202012 is an abundant number, since it is smaller than the sum of its proper divisors (13226813903492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13221111202012 is a wasteful number, since it uses less digits than its factorization.

13221111202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101833965 (or 101833963 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 13221111202012 its reverse (21020211112231), we get a palindrome (34241322314243).

The spelling of 13221111202012 in words is "thirteen trillion, two hundred twenty-one billion, one hundred eleven million, two hundred two thousand, twelve".