212011013312 has 112 divisors (see below), whose sum is σ = 506321080320. Its totient is φ = 86113539072.

The previous prime is 212011013311. The next prime is 212011013321. The reversal of 212011013312 is 213310110212.

It is a tau number, because it is divible by the number of its divisors (112).

It is not an unprimeable number, because it can be changed into a prime (212011013311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028753 + ... + 1217519.

Almost surely, 2^212011013312 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 212011013312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253160540160).

212011013312 is an abundant number, since it is smaller than the sum of its proper divisors (294310067008).

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

212011013312 is a wasteful number, since it uses less digits than its factorization.

212011013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188918 (or 188908 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212011013312 its reverse (213310110212), we get a palindrome (425321123524).

The spelling of 212011013312 in words is "two hundred twelve billion, eleven million, thirteen thousand, three hundred twelve".