212021112232 has 32 divisors (see below), whose sum is σ = 409591420200. Its totient is φ = 102841682944.

The previous prime is 212021112229. The next prime is 212021112239. The reversal of 212021112232 is 232211120212.

It can be written as a sum of positive squares in 4 ways, for example, as 193190137156 + 18830975076 = 439534^2 + 137226^2 .

It is not an unprimeable number, because it can be changed into a prime (212021112239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2771533 + ... + 2847004.

Almost surely, 2^212021112232 is an apocalyptic number.

It is an amenable number.

212021112232 is a deficient number, since it is larger than the sum of its proper divisors (197570307968).

212021112232 is a wasteful number, since it uses less digits than its factorization.

212021112232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618685 (or 5618681 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 212021112232 its reverse (232211120212), we get a palindrome (444232232444).

The spelling of 212021112232 in words is "two hundred twelve billion, twenty-one million, one hundred twelve thousand, two hundred thirty-two".