212021032231 has 8 divisors (see below), whose sum is σ = 212819695920. Its totient is φ = 211223842368.

The previous prime is 212021032211. The next prime is 212021032297. The reversal of 212021032231 is 132230120212.

212021032231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212021032231 - 2¹⁷ = 212020901159 is a prime.

It is a super-2 number, since 2×212021032231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212021032199 and 212021032208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021032211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79776 + ... + 656053.

It is an arithmetic number, because the mean of its divisors is an integer number (26602461990).

Almost surely, 2^212021032231 is an apocalyptic number.

212021032231 is a deficient number, since it is larger than the sum of its proper divisors (798663689).

212021032231 is an equidigital number, since it uses as much as digits as its factorization.

212021032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736913.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212021032231 its reverse (132230120212), we get a palindrome (344251152443).

The spelling of 212021032231 in words is "two hundred twelve billion, twenty-one million, thirty-two thousand, two hundred thirty-one".