212144221234 has 16 divisors (see below), whose sum is σ = 350582173056. Its totient is φ = 95474446000.

The previous prime is 212144221171. The next prime is 212144221271. The reversal of 212144221234 is 432122441212.

212144221234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47735002 + ... + 47739445.

It is an arithmetic number, because the mean of its divisors is an integer number (21911385816).

Almost surely, 2^212144221234 is an apocalyptic number.

212144221234 is a deficient number, since it is larger than the sum of its proper divisors (138437951822).

212144221234 is a wasteful number, since it uses less digits than its factorization.

212144221234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95474561.

The product of its digits is 6144, while the sum is 28.

Adding to 212144221234 its reverse (432122441212), we get a palindrome (644266662446).

The spelling of 212144221234 in words is "two hundred twelve billion, one hundred forty-four million, two hundred twenty-one thousand, two hundred thirty-four".