212003021234 has 4 divisors (see below), whose sum is σ = 318004531854. Its totient is φ = 106001510616.

The previous prime is 212003021221. The next prime is 212003021239. The reversal of 212003021234 is 432120300212.

212003021234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 132239140609 + 79763880625 = 363647^2 + 282425^2 .

It is not an unprimeable number, because it can be changed into a prime (212003021239) 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 as a sum of consecutive naturals, namely, 53000755307 + ... + 53000755310.

Almost surely, 2^212003021234 is an apocalyptic number.

212003021234 is a deficient number, since it is larger than the sum of its proper divisors (106001510620).

212003021234 is a wasteful number, since it uses less digits than its factorization.

212003021234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106001510619.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212003021234 its reverse (432120300212), we get a palindrome (644123321446).

The spelling of 212003021234 in words is "two hundred twelve billion, three million, twenty-one thousand, two hundred thirty-four".