210111021133 has 4 divisors (see below), whose sum is σ = 226273407388. Its totient is φ = 193948634880.

The previous prime is 210111021119. The next prime is 210111021209. The reversal of 210111021133 is 331120111012.

It is a happy number.

210111021133 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 2 ways, for example, as 127076564484 + 83034456649 = 356478^2 + 288157^2 .

It is not a de Polignac number, because 210111021133 - 2¹⁷ = 210110890061 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 (210111021233) 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, 8081193108 + ... + 8081193133.

It is an arithmetic number, because the mean of its divisors is an integer number (56568351847).

Almost surely, 2^210111021133 is an apocalyptic number.

It is an amenable number.

210111021133 is a deficient number, since it is larger than the sum of its proper divisors (16162386255).

210111021133 is a wasteful number, since it uses less digits than its factorization.

210111021133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16162386254.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 210111021133 its reverse (331120111012), we get a palindrome (541231132145).

The spelling of 210111021133 in words is "two hundred ten billion, one hundred eleven million, twenty-one thousand, one hundred thirty-three".