5211121 has 4 divisors (see below), whose sum is σ = 5215744. Its totient is φ = 5206500.

The previous prime is 5211109. The next prime is 5211209. The reversal of 5211121 is 1211125.

5211121 is digitally balanced in base 3, 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5211121 - 2⁹ = 5210609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5211421) 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, 616 + ... + 3286.

It is an arithmetic number, because the mean of its divisors is an integer number (1303936).

Almost surely, 2^5211121 is an apocalyptic number.

It is an amenable number.

5211121 is a deficient number, since it is larger than the sum of its proper divisors (4623).

5211121 is a wasteful number, since it uses less digits than its factorization.

5211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4622.

The product of its digits is 20, while the sum is 13.

The square root of 5211121 is about 2282.7879884037. The cubic root of 5211121 is about 173.3712388336.

Adding to 5211121 its reverse (1211125), we get a palindrome (6422246).

The spelling of 5211121 in words is "five million, two hundred eleven thousand, one hundred twenty-one".