211122012200 has 96 divisors (see below), whose sum is σ = 535906726560. Its totient is φ = 76710777600.

The previous prime is 211122012163. The next prime is 211122012239. The reversal of 211122012200 is 2210221112.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2785202 + ... + 2859998.

It is an arithmetic number, because the mean of its divisors is an integer number (5582361735).

Almost surely, 2^211122012200 is an apocalyptic number.

211122012200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211122012200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267953363280).

211122012200 is an abundant number, since it is smaller than the sum of its proper divisors (324784714360).

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

211122012200 is a wasteful number, since it uses less digits than its factorization.

211122012200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76107 (or 76098 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 211122012200 its reverse (2210221112), we get a palindrome (213332233312).

The spelling of 211122012200 in words is "two hundred eleven billion, one hundred twenty-two million, twelve thousand, two hundred".