2011330133221 has 4 divisors (see below), whose sum is σ = 2098779269472. Its totient is φ = 1923880996972.

The previous prime is 2011330133203. The next prime is 2011330133237. The reversal of 2011330133221 is 1223310331102.

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 2011330133221 - 2²⁷ = 2011195915493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011330133192 and 2011330133201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011330130221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43724568091 + ... + 43724568136.

It is an arithmetic number, because the mean of its divisors is an integer number (524694817368).

Almost surely, 2^{2011330133221} is an apocalyptic number.

It is an amenable number.

2011330133221 is a deficient number, since it is larger than the sum of its proper divisors (87449136251).

2011330133221 is an equidigital number, since it uses as much as digits as its factorization.

2011330133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87449136250.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2011330133221 its reverse (1223310331102), we get a palindrome (3234640464323).

The spelling of 2011330133221 in words is "two trillion, eleven billion, three hundred thirty million, one hundred thirty-three thousand, two hundred twenty-one".