212101200312 has 64 divisors (see below), whose sum is σ = 541800230400. Its totient is φ = 69162243840.

The previous prime is 212101200271. The next prime is 212101200323. The reversal of 212101200312 is 213002101212.

It is a super-2 number, since 2×212101200312² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212101200291 and 212101200300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311387 + ... + 2401397.

It is an arithmetic number, because the mean of its divisors is an integer number (8465628600).

Almost surely, 2^212101200312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212101200312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270900115200).

212101200312 is an abundant number, since it is smaller than the sum of its proper divisors (329699030088).

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

212101200312 is a wasteful number, since it uses less digits than its factorization.

212101200312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92156 (or 92152 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212101200312 its reverse (213002101212), we get a palindrome (425103301524).

The spelling of 212101200312 in words is "two hundred twelve billion, one hundred one million, two hundred thousand, three hundred twelve".