212021111232 has 336 divisors, whose sum is σ = 734686018560. Its totient is φ = 57148084224.

The previous prime is 212021111201. The next prime is 212021111251. The reversal of 212021111232 is 232111120212.

212021111232 is a `hidden beast` number, since 212 + 0 + 211 + 11 + 232 = 666.

212021111232 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (336).

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

It is a congruent number.

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, 6754069 + ... + 6785387.

Almost surely, 2^212021111232 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 212021111232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (367343009280).

212021111232 is an abundant number, since it is smaller than the sum of its proper divisors (522664907328).

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

212021111232 is a wasteful number, since it uses less digits than its factorization.

212021111232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31440 (or 31427 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 212021111232 its reverse (232111120212), we get a palindrome (444132231444).

The spelling of 212021111232 in words is "two hundred twelve billion, twenty-one million, one hundred eleven thousand, two hundred thirty-two".