211121122222 has 8 divisors (see below), whose sum is σ = 316769490576. Its totient is φ = 105531292032.

The previous prime is 211121122217. The next prime is 211121122343. The reversal of 211121122222 is 222221121112.

211121122222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 211121122222.

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, 14625523 + ... + 14639950.

It is an arithmetic number, because the mean of its divisors is an integer number (39596186322).

Almost surely, 2^211121122222 is an apocalyptic number.

211121122222 is a deficient number, since it is larger than the sum of its proper divisors (105648368354).

211121122222 is a wasteful number, since it uses less digits than its factorization.

211121122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29269082.

The product of its digits is 128, while the sum is 19.

Adding to 211121122222 its reverse (222221121112), we get a palindrome (433342243334).

The spelling of 211121122222 in words is "two hundred eleven billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred twenty-two".