2211330341221 has 4 divisors (see below), whose sum is σ = 2231996980032. Its totient is φ = 2190663702412.

The previous prime is 2211330341161. The next prime is 2211330341249. The reversal of 2211330341221 is 1221430331122.

2211330341221 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 2211330341221 - 2⁷ = 2211330341093 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 (2211330341251) 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, 10333319245 + ... + 10333319458.

It is an arithmetic number, because the mean of its divisors is an integer number (557999245008).

Almost surely, 2^{2211330341221} is an apocalyptic number.

It is an amenable number.

2211330341221 is a deficient number, since it is larger than the sum of its proper divisors (20666638811).

2211330341221 is a wasteful number, since it uses less digits than its factorization.

2211330341221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20666638810.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 2211330341221 its reverse (1221430331122), we get a palindrome (3432760672343).

The spelling of 2211330341221 in words is "two trillion, two hundred eleven billion, three hundred thirty million, three hundred forty-one thousand, two hundred twenty-one".