212444222234212 has 12 divisors (see below), whose sum is σ = 372048166333116. Its totient is φ = 106144746139040.

The previous prime is 212444222234203. The next prime is 212444222234311. The reversal of 212444222234212 is 212432222444212.

It can be written as a sum of positive squares in 2 ways, for example, as 190745544056356 + 21698678177856 = 13811066^2 + 4658184^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19341238339 + ... + 19341249322.

It is an arithmetic number, because the mean of its divisors is an integer number (31004013861093).

Almost surely, 2^{212444222234212} is an apocalyptic number.

It is an amenable number.

212444222234212 is a deficient number, since it is larger than the sum of its proper divisors (159603944098904).

212444222234212 is a wasteful number, since it uses less digits than its factorization.

212444222234212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38682489038 (or 38682489036 counting only the distinct ones).

The product of its digits is 196608, while the sum is 37.

Adding to 212444222234212 its reverse (212432222444212), we get a palindrome (424876444678424).

The spelling of 212444222234212 in words is "two hundred twelve trillion, four hundred forty-four billion, two hundred twenty-two million, two hundred thirty-four thousand, two hundred twelve".