212012523300 has 144 divisors (see below), whose sum is σ = 649730289600. Its totient is φ = 53192663040.

The previous prime is 212012523263. The next prime is 212012523323. The reversal of 212012523300 is 3325210212.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20644767 + ... + 20655033.

It is an arithmetic number, because the mean of its divisors is an integer number (4512015900).

Almost surely, 2^212012523300 is an apocalyptic number.

212012523300 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 212012523300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324865144800).

212012523300 is an abundant number, since it is smaller than the sum of its proper divisors (437717766300).

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

212012523300 is a wasteful number, since it uses less digits than its factorization.

212012523300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14350 (or 14343 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 212012523300 its reverse (3325210212), we get a palindrome (215337733512).

The spelling of 212012523300 in words is "two hundred twelve billion, twelve million, five hundred twenty-three thousand, three hundred".