13021122012 has 24 divisors (see below), whose sum is σ = 30459159696. Its totient is φ = 4329439488.

The previous prime is 13021122007. The next prime is 13021122053. The reversal of 13021122012 is 21022112031.

It is a junction number, because it is equal to n+sod(n) for n = 13021121982 and 13021122000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1361853 + ... + 1371380.

It is an arithmetic number, because the mean of its divisors is an integer number (1269131654).

Almost surely, 2^13021122012 is an apocalyptic number.

13021122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13021122012 is an abundant number, since it is smaller than the sum of its proper divisors (17438037684).

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

13021122012 is a wasteful number, since it uses less digits than its factorization.

13021122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2733637 (or 2733635 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 13021122012 its reverse (21022112031), we get a palindrome (34043234043).

The spelling of 13021122012 in words is "thirteen billion, twenty-one million, one hundred twenty-two thousand, twelve".