212201434321 has 32 divisors (see below), whose sum is σ = 229105594368. Its totient is φ = 195830169600.

The previous prime is 212201434309. The next prime is 212201434327. The reversal of 212201434321 is 123434102212.

It is a cyclic number.

It is not a de Polignac number, because 212201434321 - 2¹¹ = 212201432273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212201434327) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 184362096 + ... + 184363246.

It is an arithmetic number, because the mean of its divisors is an integer number (7159549824).

Almost surely, 2^212201434321 is an apocalyptic number.

It is an amenable number.

212201434321 is a deficient number, since it is larger than the sum of its proper divisors (16904160047).

212201434321 is a wasteful number, since it uses less digits than its factorization.

212201434321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2121.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 212201434321 its reverse (123434102212), we get a palindrome (335635536533).

It can be divided in two parts, 21220 and 1434321, that added together give a palindrome (1455541).

The spelling of 212201434321 in words is "two hundred twelve billion, two hundred one million, four hundred thirty-four thousand, three hundred twenty-one".