6217044121 has 4 divisors (see below), whose sum is σ = 6219753012. Its totient is φ = 6214335232.

The previous prime is 6217044091. The next prime is 6217044151. The reversal of 6217044121 is 1214407126.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (6217044091) and next prime (6217044151).

It can be written as a sum of positive squares in 2 ways, for example, as 3738099600 + 2478944521 = 61140^2 + 49789^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6217044121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6217044121.

It is not an unprimeable number, because it can be changed into a prime (6217044151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1351000 + ... + 1355593.

It is an arithmetic number, because the mean of its divisors is an integer number (1554938253).

Almost surely, 2^6217044121 is an apocalyptic number.

It is an amenable number.

6217044121 is a deficient number, since it is larger than the sum of its proper divisors (2708891).

6217044121 is a wasteful number, since it uses less digits than its factorization.

6217044121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2708890.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 6217044121 is about 78848.2347361055. The cubic root of 6217044121 is about 1838.7724287758.

The spelling of 6217044121 in words is "six billion, two hundred seventeen million, forty-four thousand, one hundred twenty-one".