211421340333 has 48 divisors (see below), whose sum is σ = 350456354560. Its totient is φ = 120313320192.

The previous prime is 211421340311. The next prime is 211421340341. The reversal of 211421340333 is 333043124112.

It is a happy number.

211421340333 is a `hidden beast` number, since 2 + 1 + 14 + 213 + 403 + 33 = 666.

211421340333 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211421340333 - 2¹⁷ = 211421209261 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211421340297 and 211421340306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211421340133) 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 47 ways as a sum of consecutive naturals, for example, 23914728 + ... + 23923566.

Almost surely, 2^211421340333 is an apocalyptic number.

It is an amenable number.

211421340333 is a deficient number, since it is larger than the sum of its proper divisors (139035014227).

211421340333 is a wasteful number, since it uses less digits than its factorization.

211421340333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10378 (or 10375 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 211421340333 its reverse (333043124112), we get a palindrome (544464464445).

The spelling of 211421340333 in words is "two hundred eleven billion, four hundred twenty-one million, three hundred forty thousand, three hundred thirty-three".