6001121221 has 8 divisors (see below), whose sum is σ = 6150896640. Its totient is φ = 5852947968.

The previous prime is 6001121219. The next prime is 6001121233. The reversal of 6001121221 is 1221211006.

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 6001121221 - 2¹ = 6001121219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6001121195 and 6001121204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6001101221) 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, 392956 + ... + 407941.

It is an arithmetic number, because the mean of its divisors is an integer number (768862080).

Almost surely, 2^6001121221 is an apocalyptic number.

It is an amenable number.

6001121221 is a deficient number, since it is larger than the sum of its proper divisors (149775419).

6001121221 is a wasteful number, since it uses less digits than its factorization.

6001121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801083.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 6001121221 is about 77466.9040364981. The cubic root of 6001121221 is about 1817.2337743250.

Adding to 6001121221 its reverse (1221211006), we get a palindrome (7222332227).

The spelling of 6001121221 in words is "six billion, one million, one hundred twenty-one thousand, two hundred twenty-one".