211304421200 has 60 divisors (see below), whose sum is σ = 513775324608. Its totient is φ = 83503420800.

The previous prime is 211304421199. The next prime is 211304421217. The reversal of 211304421200 is 2124403112.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3149096 + ... + 3215495.

Almost surely, 2^211304421200 is an apocalyptic number.

211304421200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211304421200 is an abundant number, since it is smaller than the sum of its proper divisors (302470903408).

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

211304421200 is a wasteful number, since it uses less digits than its factorization.

211304421200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6364692 (or 6364681 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 211304421200 its reverse (2124403112), we get a palindrome (213428824312).

The spelling of 211304421200 in words is "two hundred eleven billion, three hundred four million, four hundred twenty-one thousand, two hundred".