212021131230 has 160 divisors (see below), whose sum is σ = 589061392128. Its totient is φ = 54662169600.

The previous prime is 212021131229. The next prime is 212021131243. The reversal of 212021131230 is 32131120212.

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 79 ways as a sum of consecutive naturals, for example, 30454950 + ... + 30461910.

Almost surely, 2^212021131230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212021131230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (294530696064).

212021131230 is an abundant number, since it is smaller than the sum of its proper divisors (377040260898).

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

212021131230 is a wasteful number, since it uses less digits than its factorization.

212021131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8224 (or 8215 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212021131230 its reverse (32131120212), we get a palindrome (244152251442).

The spelling of 212021131230 in words is "two hundred twelve billion, twenty-one million, one hundred thirty-one thousand, two hundred thirty".