211021001133 has 4 divisors (see below), whose sum is σ = 281361334848. Its totient is φ = 140680667420.

The previous prime is 211021001069. The next prime is 211021001153. The reversal of 211021001133 is 331100120112.

It is a happy number.

211021001133 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211021001133 - 2⁶ = 211021001069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211021001153) 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 3 ways as a sum of consecutive naturals, for example, 35170166853 + ... + 35170166858.

It is an arithmetic number, because the mean of its divisors is an integer number (70340333712).

Almost surely, 2^211021001133 is an apocalyptic number.

It is an amenable number.

211021001133 is a deficient number, since it is larger than the sum of its proper divisors (70340333715).

211021001133 is an equidigital number, since it uses as much as digits as its factorization.

211021001133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70340333714.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 211021001133 its reverse (331100120112), we get a palindrome (542121121245).

The spelling of 211021001133 in words is "two hundred eleven billion, twenty-one million, one thousand, one hundred thirty-three".