222122000221 has 16 divisors (see below), whose sum is σ = 256586678208. Its totient is φ = 190037612800.

The previous prime is 222122000213. The next prime is 222122000237. The reversal of 222122000221 is 122000221222.

It is a cyclic number.

It is not a de Polignac number, because 222122000221 - 2³ = 222122000213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222122000195 and 222122000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122000281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3397386 + ... + 3462148.

It is an arithmetic number, because the mean of its divisors is an integer number (16036667388).

Almost surely, 2^222122000221 is an apocalyptic number.

It is an amenable number.

222122000221 is a deficient number, since it is larger than the sum of its proper divisors (34464677987).

222122000221 is a wasteful number, since it uses less digits than its factorization.

222122000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83132.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222122000221 its reverse (122000221222), we get a palindrome (344122221443).

The spelling of 222122000221 in words is "two hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-one", and thus it is an aban number.