6001221 has 8 divisors (see below), whose sum is σ = 8472384. Its totient is φ = 3765440.

The previous prime is 6001217. The next prime is 6001249. The reversal of 6001221 is 1221006.

6001221 is nontrivially palindromic in base 6.

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 6001221 - 2² = 6001217 is a prime.

6001221 is a modest number, since divided by 1221 gives 6 as remainder.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6001197 and 6001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6001201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58785 + ... + 58886.

It is an arithmetic number, because the mean of its divisors is an integer number (1059048).

Almost surely, 2^6001221 is an apocalyptic number.

It is an amenable number.

6001221 is a deficient number, since it is larger than the sum of its proper divisors (2471163).

6001221 is a wasteful number, since it uses less digits than its factorization.

6001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117691.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 6001221 is about 2449.7389656859. The cubic root of 6001221 is about 181.7243845819.

Adding to 6001221 its reverse (1221006), we get a palindrome (7222227).

The spelling of 6001221 in words is "six million, one thousand, two hundred twenty-one".