212333213012 has 12 divisors (see below), whose sum is σ = 375413877300. Its totient is φ = 105072105216.

The previous prime is 212333213009. The next prime is 212333213047. The reversal of 212333213012 is 210312333212.

It can be written as a sum of positive squares in 2 ways, for example, as 41727867076 + 170605345936 = 204274^2 + 413044^2 .

It is a super-2 number, since 2×212333213012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273624887 + ... + 273625662.

It is an arithmetic number, because the mean of its divisors is an integer number (31284489775).

Almost surely, 2^212333213012 is an apocalyptic number.

It is an amenable number.

212333213012 is a deficient number, since it is larger than the sum of its proper divisors (163080664288).

212333213012 is a wasteful number, since it uses less digits than its factorization.

212333213012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547250650 (or 547250648 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 212333213012 its reverse (210312333212), we get a palindrome (422645546224).

The spelling of 212333213012 in words is "two hundred twelve billion, three hundred thirty-three million, two hundred thirteen thousand, twelve".