212234344245 has 144 divisors (see below), whose sum is σ = 469702187136. Its totient is φ = 86754412800.

The previous prime is 212234344229. The next prime is 212234344249. The reversal of 212234344245 is 542443432212.

212234344245 is a `hidden beast` number, since 2 + 1 + 223 + 4 + 3 + 4 + 424 + 5 = 666.

212234344245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212234344245 - 2⁴ = 212234344229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212234344249) 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 143 ways as a sum of consecutive naturals, for example, 2279374 + ... + 2370656.

It is an arithmetic number, because the mean of its divisors is an integer number (3261820744).

Almost surely, 2^212234344245 is an apocalyptic number.

It is an amenable number.

212234344245 is an abundant number, since it is smaller than the sum of its proper divisors (257467842891).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212234344245 is a wasteful number, since it uses less digits than its factorization.

212234344245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91384 (or 91370 counting only the distinct ones).

The product of its digits is 184320, while the sum is 36.

Adding to 212234344245 its reverse (542443432212), we get a palindrome (754677776457).

The spelling of 212234344245 in words is "two hundred twelve billion, two hundred thirty-four million, three hundred forty-four thousand, two hundred forty-five".