212100300 has 108 divisors (see below), whose sum is σ = 667561440. Its totient is φ = 56327040.

The previous prime is 212100299. The next prime is 212100307. The reversal of 212100300 is 3001212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (212100307) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 416446 + ... + 416954.

Almost surely, 2^212100300 is an apocalyptic number.

212100300 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 212100300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333780720).

212100300 is an abundant number, since it is smaller than the sum of its proper divisors (455461140).

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

212100300 is a wasteful number, since it uses less digits than its factorization.

212100300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 982 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 212100300 is about 14563.6636874105. The cubic root of 212100300 is about 596.3672158566.

Adding to 212100300 its reverse (3001212), we get a palindrome (215101512).

The spelling of 212100300 in words is "two hundred twelve million, one hundred thousand, three hundred".