222120022211 has 4 divisors (see below), whose sum is σ = 222120968472. Its totient is φ = 222119075952.

The previous prime is 222120022199. The next prime is 222120022273. The reversal of 222120022211 is 112220021222.

It is a happy number.

222120022211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 222120022211 - 2⁶ = 222120022147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 222120022211.

It is not an unprimeable number, because it can be changed into a prime (222120022811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174140 + ... + 688886.

It is an arithmetic number, because the mean of its divisors is an integer number (55530242118).

Almost surely, 2^222120022211 is an apocalyptic number.

222120022211 is a deficient number, since it is larger than the sum of its proper divisors (946261).

222120022211 is an equidigital number, since it uses as much as digits as its factorization.

222120022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946260.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222120022211 its reverse (112220021222), we get a palindrome (334340043433).

The spelling of 222120022211 in words is "two hundred twenty-two billion, one hundred twenty million, twenty-two thousand, two hundred eleven".