11610221 has 8 divisors (see below), whose sum is σ = 13406400. Its totient is φ = 9848448.

The previous prime is 11610217. The next prime is 11610223. The reversal of 11610221 is 12201611.

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 11610221 - 2² = 11610217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11610196 and 11610205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11610223) 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, 7871 + ... + 9228.

It is an arithmetic number, because the mean of its divisors is an integer number (1675800).

Almost surely, 2^11610221 is an apocalyptic number.

It is an amenable number.

11610221 is a deficient number, since it is larger than the sum of its proper divisors (1796179).

11610221 is an equidigital number, since it uses as much as digits as its factorization.

11610221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17203.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 11610221 is about 3407.3774372676. The cubic root of 11610221 is about 226.4367061750.

Adding to 11610221 its reverse (12201611), we get a palindrome (23811832).

The spelling of 11610221 in words is "eleven million, six hundred ten thousand, two hundred twenty-one".