601221 has 4 divisors (see below), whose sum is σ = 801632. Its totient is φ = 400812.

The previous prime is 601219. The next prime is 601231. The reversal of 601221 is 122106.

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 not a de Polignac number, because 601221 - 2¹ = 601219 is a prime.

It is a super-2 number, since 2×601221² = 722933381682, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 601197 and 601206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (601201) 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, 100201 + ... + 100206.

It is an arithmetic number, because the mean of its divisors is an integer number (200408).

2⁶⁰¹²²¹ is an apocalyptic number.

It is an amenable number.

601221 is a deficient number, since it is larger than the sum of its proper divisors (200411).

601221 is a wasteful number, since it uses less digits than its factorization.

601221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200410.

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

The square root of 601221 is about 775.3844207875. The cubic root of 601221 is about 84.4004406137.

Adding to 601221 its reverse (122106), we get a palindrome (723327).

The spelling of 601221 in words is "six hundred one thousand, two hundred twenty-one".