2221311321133 has 4 divisors (see below), whose sum is σ = 2263222855548. Its totient is φ = 2179399786720.

The previous prime is 2221311321101. The next prime is 2221311321167. The reversal of 2221311321133 is 3311231131222.

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 637733210724 + 1583578110409 = 798582^2 + 1258403^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221311321133 - 2⁵ = 2221311321101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221311321098 and 2221311321107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221311321533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20955767128 + ... + 20955767233.

It is an arithmetic number, because the mean of its divisors is an integer number (565805713887).

Almost surely, 2^{2221311321133} is an apocalyptic number.

It is an amenable number.

2221311321133 is a deficient number, since it is larger than the sum of its proper divisors (41911534415).

2221311321133 is an equidigital number, since it uses as much as digits as its factorization.

2221311321133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41911534414.

The product of its digits is 1296, while the sum is 25.

Adding to 2221311321133 its reverse (3311231131222), we get a palindrome (5532542452355).

The spelling of 2221311321133 in words is "two trillion, two hundred twenty-one billion, three hundred eleven million, three hundred twenty-one thousand, one hundred thirty-three".