22212222000221 has 8 divisors (see below), whose sum is σ = 24236738400000. Its totient is φ = 20188576182240.

The previous prime is 22212222000211. The next prime is 22212222000341. The reversal of 22212222000221 is 12200022221222.

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 22212222000221 - 2¹⁰ = 22212221999197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22212222000193 and 22212222000202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212222000211) 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, 217592096 + ... + 217694153.

It is an arithmetic number, because the mean of its divisors is an integer number (3029592300000).

Almost surely, 2^{22212222000221} is an apocalyptic number.

It is an amenable number.

22212222000221 is a deficient number, since it is larger than the sum of its proper divisors (2024516399779).

22212222000221 is a wasteful number, since it uses less digits than its factorization.

22212222000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435290899.

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

Adding to 22212222000221 its reverse (12200022221222), we get a palindrome (34412244221443).

The spelling of 22212222000221 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, two hundred twenty-one", and thus it is an aban number.