212444332231 has 16 divisors (see below), whose sum is σ = 229566467520. Its totient is φ = 196105029120.

The previous prime is 212444332229. The next prime is 212444332237. The reversal of 212444332231 is 132233444212.

212444332231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 212444332231 - 2¹ = 212444332229 is a prime.

It is a super-2 number, since 2×212444332231² (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 = 212444332193 and 212444332202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212444332237) 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 15 ways as a sum of consecutive naturals, for example, 1354146 + ... + 1502863.

It is an arithmetic number, because the mean of its divisors is an integer number (14347904220).

Almost surely, 2^212444332231 is an apocalyptic number.

212444332231 is a deficient number, since it is larger than the sum of its proper divisors (17122135289).

212444332231 is a wasteful number, since it uses less digits than its factorization.

212444332231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857146.

The product of its digits is 27648, while the sum is 31.

Adding to 212444332231 its reverse (132233444212), we get a palindrome (344677776443).

The spelling of 212444332231 in words is "two hundred twelve billion, four hundred forty-four million, three hundred thirty-two thousand, two hundred thirty-one".