2110043313221 has 8 divisors (see below), whose sum is σ = 2183015885400. Its totient is φ = 2037084904960.

The previous prime is 2110043313187. The next prime is 2110043313223. The reversal of 2110043313221 is 1223133400112.

It can be written as a sum of positive squares in 4 ways, for example, as 1234574320996 + 875468992225 = 1111114^2 + 935665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2110043313221 - 2²² = 2110039118917 is a prime.

It is a super-2 number, since 2×2110043313221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110043313223) 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 7 ways as a sum of consecutive naturals, for example, 3237440 + ... + 3834201.

It is an arithmetic number, because the mean of its divisors is an integer number (272876985675).

Almost surely, 2^{2110043313221} is an apocalyptic number.

It is an amenable number.

2110043313221 is a deficient number, since it is larger than the sum of its proper divisors (72972572179).

2110043313221 is a wasteful number, since it uses less digits than its factorization.

2110043313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7081959.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2110043313221 its reverse (1223133400112), we get a palindrome (3333176713333).

The spelling of 2110043313221 in words is "two trillion, one hundred ten billion, forty-three million, three hundred thirteen thousand, two hundred twenty-one".