211110222 has 16 divisors (see below), whose sum is σ = 422595072. Its totient is φ = 70307640.

The previous prime is 211110209. The next prime is 211110223. The reversal of 211110222 is 222011112.

It is a junction number, because it is equal to n+sod(n) for n = 211110198 and 211110207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211110223) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7998 + ... + 22049.

It is an arithmetic number, because the mean of its divisors is an integer number (26412192).

Almost surely, 2^211110222 is an apocalyptic number.

211110222 is an abundant number, since it is smaller than the sum of its proper divisors (211484850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211110222 is a wasteful number, since it uses less digits than its factorization.

211110222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31223.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 211110222 is about 14529.6325486917. The cubic root of 211110222 is about 595.4378266559.

Adding to 211110222 its reverse (222011112), we get a palindrome (433121334).

The spelling of 211110222 in words is "two hundred eleven million, one hundred ten thousand, two hundred twenty-two".