212221110200 has 96 divisors (see below), whose sum is σ = 539715076560. Its totient is φ = 76964121600.

The previous prime is 212221110187. The next prime is 212221110217. The reversal of 212221110200 is 2011122212.

It is a super-2 number, since 2×212221110200² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 691292 + ... + 949908.

Almost surely, 2^212221110200 is an apocalyptic number.

212221110200 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 212221110200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269857538280).

212221110200 is an abundant number, since it is smaller than the sum of its proper divisors (327493966360).

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

212221110200 is a wasteful number, since it uses less digits than its factorization.

212221110200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259017 (or 259008 counting only the distinct ones).

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

Adding to 212221110200 its reverse (2011122212), we get a palindrome (214232232412).

The spelling of 212221110200 in words is "two hundred twelve billion, two hundred twenty-one million, one hundred ten thousand, two hundred".