6021221 has 4 divisors (see below), whose sum is σ = 6039744. Its totient is φ = 6002700.

The previous prime is 6021209. The next prime is 6021227. The reversal of 6021221 is 1221206.

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 6021221 - 2¹⁴ = 6004837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6021196 and 6021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6021227) 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, 8765 + ... + 9426.

It is an arithmetic number, because the mean of its divisors is an integer number (1509936).

Almost surely, 2^6021221 is an apocalyptic number.

It is an amenable number.

6021221 is a deficient number, since it is larger than the sum of its proper divisors (18523).

6021221 is a wasteful number, since it uses less digits than its factorization.

6021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18522.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 6021221 is about 2453.8176378859. The cubic root of 6021221 is about 181.9260356377.

Adding to 6021221 its reverse (1221206), we get a palindrome (7242427).

The spelling of 6021221 in words is "six million, twenty-one thousand, two hundred twenty-one".