212012022300 has 144 divisors (see below), whose sum is σ = 660804372480. Its totient is φ = 52172040960.

The previous prime is 212012022269. The next prime is 212012022307. The reversal of 212012022300 is 3220210212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212012022300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212012022307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18554389 + ... + 18565811.

Almost surely, 2^212012022300 is an apocalyptic number.

212012022300 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 212012022300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330402186240).

212012022300 is an abundant number, since it is smaller than the sum of its proper divisors (448792350180).

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

212012022300 is a wasteful number, since it uses less digits than its factorization.

212012022300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16212 (or 16205 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 212012022300 its reverse (3220210212), we get a palindrome (215232232512).

The spelling of 212012022300 in words is "two hundred twelve billion, twelve million, twenty-two thousand, three hundred".