2133111300221 has 4 divisors (see below), whose sum is σ = 2327030509344. Its totient is φ = 1939192091100.

The previous prime is 2133111300197. The next prime is 2133111300223. The reversal of 2133111300221 is 1220031113312.

It is a happy number.

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 de Polignac number, because none of the positive numbers 2^k-2133111300221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2133111300193 and 2133111300202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133111300223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96959604545 + ... + 96959604566.

It is an arithmetic number, because the mean of its divisors is an integer number (581757627336).

Almost surely, 2^{2133111300221} is an apocalyptic number.

It is an amenable number.

2133111300221 is a deficient number, since it is larger than the sum of its proper divisors (193919209123).

2133111300221 is a wasteful number, since it uses less digits than its factorization.

2133111300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193919209122.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2133111300221 its reverse (1220031113312), we get a palindrome (3353142413533).

The spelling of 2133111300221 in words is "two trillion, one hundred thirty-three billion, one hundred eleven million, three hundred thousand, two hundred twenty-one".