13220123212 has 12 divisors (see below), whose sum is σ = 23153172840. Its totient is φ = 6604930976.

The previous prime is 13220123159. The next prime is 13220123227. The reversal of 13220123212 is 21232102231.

13220123212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×13220123212² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13220123212.

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 3 ways as a sum of consecutive naturals, for example, 1276858 + ... + 1287169.

It is an arithmetic number, because the mean of its divisors is an integer number (1929431070).

Almost surely, 2^13220123212 is an apocalyptic number.

It is an amenable number.

13220123212 is a deficient number, since it is larger than the sum of its proper divisors (9933049628).

13220123212 is a wasteful number, since it uses less digits than its factorization.

13220123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565320 (or 2565318 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13220123212 its reverse (21232102231), we get a palindrome (34452225443).

The spelling of 13220123212 in words is "thirteen billion, two hundred twenty million, one hundred twenty-three thousand, two hundred twelve".