13223202021 has 64 divisors (see below), whose sum is σ = 21906339840. Its totient is φ = 7840039680.

The previous prime is 13223202011. The next prime is 13223202049. The reversal of 13223202021 is 12020232231.

13223202021 is a `hidden beast` number, since 1 + 322 + 320 + 2 + 0 + 21 = 666.

It is not a de Polignac number, because 13223202021 - 2²³ = 13214813413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13223201985 and 13223202003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223202001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 868686 + ... + 883776.

It is an arithmetic number, because the mean of its divisors is an integer number (342286560).

Almost surely, 2^13223202021 is an apocalyptic number.

It is an amenable number.

13223202021 is a deficient number, since it is larger than the sum of its proper divisors (8683137819).

13223202021 is a wasteful number, since it uses less digits than its factorization.

13223202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15223 (or 15217 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13223202021 its reverse (12020232231), we get a palindrome (25243434252).

The spelling of 13223202021 in words is "thirteen billion, two hundred twenty-three million, two hundred two thousand, twenty-one".