222221001211 has 8 divisors (see below), whose sum is σ = 255182011200. Its totient is φ = 191386508040.

The previous prime is 222221001193. The next prime is 222221001367. The reversal of 222221001211 is 112100122222.

It is a happy number.

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 222221001211 - 2⁷ = 222221001083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222221061211) 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, 531628981 + ... + 531629398.

It is an arithmetic number, because the mean of its divisors is an integer number (31897751400).

Almost surely, 2^222221001211 is an apocalyptic number.

222221001211 is a deficient number, since it is larger than the sum of its proper divisors (32961009989).

222221001211 is a wasteful number, since it uses less digits than its factorization.

222221001211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063258409.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222221001211 its reverse (112100122222), we get a palindrome (334321123433).

The spelling of 222221001211 in words is "two hundred twenty-two billion, two hundred twenty-one million, one thousand, two hundred eleven".