13222012021 has 16 divisors (see below), whose sum is σ = 14698722240. Its totient is φ = 11835774720.

The previous prime is 13222011997. The next prime is 13222012033. The reversal of 13222012021 is 12021022231.

It is a happy number.

13222012021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13222012021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13222011986 and 13222012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222012051) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 167115 + ... + 233176.

It is an arithmetic number, because the mean of its divisors is an integer number (918670140).

Almost surely, 2^13222012021 is an apocalyptic number.

It is an amenable number.

13222012021 is a deficient number, since it is larger than the sum of its proper divisors (1476710219).

13222012021 is a wasteful number, since it uses less digits than its factorization.

13222012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400404.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 13222012021 its reverse (12021022231), we get a palindrome (25243034252).

The spelling of 13222012021 in words is "thirteen billion, two hundred twenty-two million, twelve thousand, twenty-one".