212000221100 has 72 divisors (see below), whose sum is σ = 482220937968. Its totient is φ = 80807731200.

The previous prime is 212000221099. The next prime is 212000221109. The reversal of 212000221100 is 1122000212.

It is a happy number.

212000221100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (212000221109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424949 + ... + 777548.

Almost surely, 2^212000221100 is an apocalyptic number.

212000221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212000221100 is an abundant number, since it is smaller than the sum of its proper divisors (270220716868).

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

212000221100 is a wasteful number, since it uses less digits than its factorization.

212000221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202595 (or 1202588 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 212000221100 its reverse (1122000212), we get a palindrome (213122221312).

The spelling of 212000221100 in words is "two hundred twelve billion, two hundred twenty-one thousand, one hundred".