212443133331 has 32 divisors (see below), whose sum is σ = 343512852480. Its totient is φ = 115015449600.

The previous prime is 212443133303. The next prime is 212443133341. The reversal of 212443133331 is 133331344212.

It is not a de Polignac number, because 212443133331 - 2¹¹ = 212443131283 is a prime.

It is a super-2 number, since 2×212443133331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212443133341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7973886 + ... + 8000483.

It is an arithmetic number, because the mean of its divisors is an integer number (10734776640).

Almost surely, 2^212443133331 is an apocalyptic number.

212443133331 is a deficient number, since it is larger than the sum of its proper divisors (131069719149).

212443133331 is a wasteful number, since it uses less digits than its factorization.

212443133331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15974427.

The product of its digits is 15552, while the sum is 30.

Adding to 212443133331 its reverse (133331344212), we get a palindrome (345774477543).

The spelling of 212443133331 in words is "two hundred twelve billion, four hundred forty-three million, one hundred thirty-three thousand, three hundred thirty-one".