212001212112 has 120 divisors (see below), whose sum is σ = 585270831936. Its totient is φ = 66111197184.

The previous prime is 212001212081. The next prime is 212001212119. The reversal of 212001212112 is 211212100212.

It is a junction number, because it is equal to n+sod(n) for n = 212001212091 and 212001212100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001212119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2270868 + ... + 2362380.

Almost surely, 2^212001212112 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 212001212112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292635415968).

212001212112 is an abundant number, since it is smaller than the sum of its proper divisors (373269619824).

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

212001212112 is a wasteful number, since it uses less digits than its factorization.

212001212112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91725 (or 91702 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212001212112 its reverse (211212100212), we get a palindrome (423213312324).

The spelling of 212001212112 in words is "two hundred twelve billion, one million, two hundred twelve thousand, one hundred twelve".