2221000222 has 8 divisors (see below), whose sum is σ = 3807428976. Its totient is φ = 951857232.

The previous prime is 2221000213. The next prime is 2221000273. The reversal of 2221000222 is 2220001222.

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

It is a super-2 number, since 2×2221000222² = 9865683972248098568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79321423 + ... + 79321450.

It is an arithmetic number, because the mean of its divisors is an integer number (475928622).

Almost surely, 2^2221000222 is an apocalyptic number.

2221000222 is a deficient number, since it is larger than the sum of its proper divisors (1586428754).

2221000222 is a wasteful number, since it uses less digits than its factorization.

2221000222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158642882.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2221000222 is about 47127.4890271060. The cubic root of 2221000222 is about 1304.7166380748.

Adding to 2221000222 its reverse (2220001222), we get a palindrome (4441001444).

It can be divided in two parts, 2221000 and 222, that added together give a palindrome (2221222).

The spelling of 2221000222 in words is "two billion, two hundred twenty-one million, two hundred twenty-two", and thus it is an aban number.