22002023221 has 8 divisors (see below), whose sum is σ = 22338949824. Its totient is φ = 21665847840.

The previous prime is 22002023149. The next prime is 22002023231. The reversal of 22002023221 is 12232020022.

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

It is a cyclic number.

It is not a de Polignac number, because 22002023221 - 2⁷ = 22002023093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22002023195 and 22002023204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22002023231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128640 + ... + 246073.

It is an arithmetic number, because the mean of its divisors is an integer number (2792368728).

Almost surely, 2^22002023221 is an apocalyptic number.

It is an amenable number.

22002023221 is a deficient number, since it is larger than the sum of its proper divisors (336926603).

22002023221 is an equidigital number, since it uses as much as digits as its factorization.

22002023221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375611.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 22002023221 its reverse (12232020022), we get a palindrome (34234043243).

The spelling of 22002023221 in words is "twenty-two billion, two million, twenty-three thousand, two hundred twenty-one".