212012230100 has 72 divisors (see below), whose sum is σ = 503329764000. Its totient is φ = 76874313600.

The previous prime is 212012230057. The next prime is 212012230147. The reversal of 212012230100 is 1032210212.

It is a happy number.

It is a congruent number.

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, 107771 + ... + 660029.

Almost surely, 2^212012230100 is an apocalyptic number.

212012230100 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 212012230100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251664882000).

212012230100 is an abundant number, since it is smaller than the sum of its proper divisors (291317533900).

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

212012230100 is a wasteful number, since it uses less digits than its factorization.

212012230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552633 (or 552626 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 212012230100 its reverse (1032210212), we get a palindrome (213044440312).

The spelling of 212012230100 in words is "two hundred twelve billion, twelve million, two hundred thirty thousand, one hundred".