22224210221 has 4 divisors (see below), whose sum is σ = 22348368000. Its totient is φ = 22100052444.

The previous prime is 22224210181. The next prime is 22224210289. The reversal of 22224210221 is 12201242222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22224210221 - 2⁶ = 22224210157 is a prime.

It is a super-3 number, since 3×22224210221³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22224210193 and 22224210202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22224210821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62078621 + ... + 62078978.

It is an arithmetic number, because the mean of its divisors is an integer number (5587092000).

Almost surely, 2^22224210221 is an apocalyptic number.

It is an amenable number.

22224210221 is a deficient number, since it is larger than the sum of its proper divisors (124157779).

22224210221 is a wasteful number, since it uses less digits than its factorization.

22224210221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124157778.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22224210221 its reverse (12201242222), we get a palindrome (34425452443).

The spelling of 22224210221 in words is "twenty-two billion, two hundred twenty-four million, two hundred ten thousand, two hundred twenty-one".