211132222 has 8 divisors (see below), whose sum is σ = 361940976. Its totient is φ = 90485232.

The previous prime is 211132219. The next prime is 211132223. The reversal of 211132222 is 222231112.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 211132196 and 211132205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211132223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7540423 + ... + 7540450.

It is an arithmetic number, because the mean of its divisors is an integer number (45242622).

Almost surely, 2^211132222 is an apocalyptic number.

211132222 is a deficient number, since it is larger than the sum of its proper divisors (150808754).

211132222 is a wasteful number, since it uses less digits than its factorization.

211132222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15080882.

The product of its digits is 96, while the sum is 16.

The square root of 211132222 is about 14530.3896024849. The cubic root of 211132222 is about 595.4585096543.

Adding to 211132222 its reverse (222231112), we get a palindrome (433363334).

The spelling of 211132222 in words is "two hundred eleven million, one hundred thirty-two thousand, two hundred twenty-two".