211111012222 has 8 divisors (see below), whose sum is σ = 345454383672. Its totient is φ = 95959551000.

The previous prime is 211111012213. The next prime is 211111012237. The reversal of 211111012222 is 222210111112.

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 = 211111012196 and 211111012205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4797977529 + ... + 4797977572.

It is an arithmetic number, because the mean of its divisors is an integer number (43181797959).

Almost surely, 2^211111012222 is an apocalyptic number.

211111012222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211111012222 is a deficient number, since it is larger than the sum of its proper divisors (134343371450).

211111012222 is a wasteful number, since it uses less digits than its factorization.

211111012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9595955114.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211111012222 its reverse (222210111112), we get a palindrome (433321123334).

The spelling of 211111012222 in words is "two hundred eleven billion, one hundred eleven million, twelve thousand, two hundred twenty-two".