212021023032 has 384 divisors, whose sum is σ = 721504143360. Its totient is φ = 54760043520.

The previous prime is 212021023013. The next prime is 212021023037. The reversal of 212021023032 is 230320120212.

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

It is a junction number, because it is equal to n+sod(n) for n = 212021022996 and 212021023014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021023037) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 73033693 + ... + 73036595.

It is an arithmetic number, because the mean of its divisors is an integer number (1878917040).

Almost surely, 2^212021023032 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 212021023032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (360752071680).

212021023032 is an abundant number, since it is smaller than the sum of its proper divisors (509483120328).

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

212021023032 is a wasteful number, since it uses less digits than its factorization.

212021023032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3163 (or 3156 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 212021023032 its reverse (230320120212), we get a palindrome (442341143244).

The spelling of 212021023032 in words is "two hundred twelve billion, twenty-one million, twenty-three thousand, thirty-two".