610221 has 8 divisors (see below), whose sum is σ = 821664. Its totient is φ = 402800.

The previous prime is 610219. The next prime is 610229. The reversal of 610221 is 122016.

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 610221 - 2¹ = 610219 is a prime.

610221 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 610197 and 610206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (610229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630 + ... + 1271.

It is an arithmetic number, because the mean of its divisors is an integer number (102708).

2⁶¹⁰²²¹ is an apocalyptic number.

It is an amenable number.

610221 is a deficient number, since it is larger than the sum of its proper divisors (211443).

610221 is a wasteful number, since it uses less digits than its factorization.

610221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011.

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

The square root of 610221 is about 781.1664355309. The cubic root of 610221 is about 84.8195016410.

Adding to 610221 its reverse (122016), we get a palindrome (732237).

The spelling of 610221 in words is "six hundred ten thousand, two hundred twenty-one".