212443311300 has 72 divisors (see below), whose sum is σ = 670548352992. Its totient is φ = 51501408000.

The previous prime is 212443311299. The next prime is 212443311319. The reversal of 212443311300 is 3113344212.

It is a happy number.

It is a super-2 number, since 2×212443311300² (a number of 23 digits) contains 22 as substring.

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, 32185081 + ... + 32191680.

Almost surely, 2^212443311300 is an apocalyptic number.

212443311300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212443311300 is an abundant number, since it is smaller than the sum of its proper divisors (458105041692).

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

212443311300 is a wasteful number, since it uses less digits than its factorization.

212443311300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64376789 (or 64376782 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 212443311300 its reverse (3113344212), we get a palindrome (215556655512).

The spelling of 212443311300 in words is "two hundred twelve billion, four hundred forty-three million, three hundred eleven thousand, three hundred".