212111011332 has 144 divisors (see below), whose sum is σ = 626839903872. Its totient is φ = 59819696640.

The previous prime is 212111011319. The next prime is 212111011349. The reversal of 212111011332 is 233110111212.

212111011332 is a `hidden beast` number, since 21 + 211 + 101 + 1 + 332 = 666.

212111011332 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212111011332² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 22288 + ... + 651704.

It is an arithmetic number, because the mean of its divisors is an integer number (4353054888).

Almost surely, 2^212111011332 is an apocalyptic number.

212111011332 is a gapful number since it is divisible by the number (22) 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 212111011332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313419951936).

212111011332 is an abundant number, since it is smaller than the sum of its proper divisors (414728892540).

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

212111011332 is a wasteful number, since it uses less digits than its factorization.

212111011332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629498 (or 629493 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 212111011332 its reverse (233110111212), we get a palindrome (445221122544).

The spelling of 212111011332 in words is "two hundred twelve billion, one hundred eleven million, eleven thousand, three hundred thirty-two".