13222122021 has 64 divisors (see below), whose sum is σ = 21224448000. Its totient is φ = 8107724160.

The previous prime is 13222121993. The next prime is 13222122049. The reversal of 13222122021 is 12022122231.

It is an interprime number because it is at equal distance from previous prime (13222121993) and next prime (13222122049).

It is not a de Polignac number, because 13222122021 - 2⁷ = 13222121893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13222121985 and 13222122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13222122071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4688950 + ... + 4691768.

It is an arithmetic number, because the mean of its divisors is an integer number (331632000).

Almost surely, 2^13222122021 is an apocalyptic number.

It is an amenable number.

13222122021 is a deficient number, since it is larger than the sum of its proper divisors (8002325979).

13222122021 is a wasteful number, since it uses less digits than its factorization.

13222122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111 (or 3105 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 13222122021 its reverse (12022122231), we get a palindrome (25244244252).

The spelling of 13222122021 in words is "thirteen billion, two hundred twenty-two million, one hundred twenty-two thousand, twenty-one".