211132011421 has 8 divisors (see below), whose sum is σ = 216055016280. Its totient is φ = 206243798592.

The previous prime is 211132011397. The next prime is 211132011437. The reversal of 211132011421 is 124110231112.

211132011421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 138280603321 + 72851408100 = 371861^2 + 269910^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211132011421 - 2¹¹ = 211132009373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211132011491) 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 7 ways as a sum of consecutive naturals, for example, 8685730 + ... + 8710003.

It is an arithmetic number, because the mean of its divisors is an integer number (27006877035).

Almost surely, 2^211132011421 is an apocalyptic number.

It is an amenable number.

211132011421 is a deficient number, since it is larger than the sum of its proper divisors (4923004859).

211132011421 is a wasteful number, since it uses less digits than its factorization.

211132011421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17396015.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 211132011421 its reverse (124110231112), we get a palindrome (335242242533).

The spelling of 211132011421 in words is "two hundred eleven billion, one hundred thirty-two million, eleven thousand, four hundred twenty-one".