13220122021 has 8 divisors (see below), whose sum is σ = 13284730080. Its totient is φ = 13155570288.

The previous prime is 13220122001. The next prime is 13220122031. The reversal of 13220122021 is 12022102231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13220122021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13220121986 and 13220122004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220122001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502230 + ... + 527896.

It is an arithmetic number, because the mean of its divisors is an integer number (1660591260).

Almost surely, 2^13220122021 is an apocalyptic number.

It is an amenable number.

13220122021 is a deficient number, since it is larger than the sum of its proper divisors (64608059).

13220122021 is a wasteful number, since it uses less digits than its factorization.

13220122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28163.

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

Adding to 13220122021 its reverse (12022102231), we get a palindrome (25242224252).

The spelling of 13220122021 in words is "thirteen billion, two hundred twenty million, one hundred twenty-two thousand, twenty-one".