211200212120 has 32 divisors (see below), whose sum is σ = 486251655120. Its totient is φ = 82515431040.

The previous prime is 211200212101. The next prime is 211200212129. The reversal of 211200212120 is 21212002112.

It is a junction number, because it is equal to n+sod(n) for n = 211200212095 and 211200212104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211200212129) 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 7 ways as a sum of consecutive naturals, for example, 61393691 + ... + 61397130.

Almost surely, 2^211200212120 is an apocalyptic number.

211200212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211200212120 is an abundant number, since it is smaller than the sum of its proper divisors (275051443000).

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

211200212120 is a wasteful number, since it uses less digits than its factorization.

211200212120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122790875 (or 122790871 counting only the distinct ones).

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

Adding to 211200212120 its reverse (21212002112), we get a palindrome (232412214232).

The spelling of 211200212120 in words is "two hundred eleven billion, two hundred million, two hundred twelve thousand, one hundred twenty".