10617221 has 8 divisors (see below), whose sum is σ = 11071488. Its totient is φ = 10170000.

The previous prime is 10617209. The next prime is 10617239. The reversal of 10617221 is 12271601.

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 10617221 - 2¹⁰ = 10616197 is a prime.

It is a super-2 number, since 2×10617221² = 225450763525682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10617193 and 10617202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10617241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1436 + ... + 4826.

It is an arithmetic number, because the mean of its divisors is an integer number (1383936).

Almost surely, 2^10617221 is an apocalyptic number.

It is an amenable number.

10617221 is a deficient number, since it is larger than the sum of its proper divisors (454267).

10617221 is a wasteful number, since it uses less digits than its factorization.

10617221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3523.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 10617221 is about 3258.4077399859. The cubic root of 10617221 is about 219.7878188416.

Adding to 10617221 its reverse (12271601), we get a palindrome (22888822).

The spelling of 10617221 in words is "ten million, six hundred seventeen thousand, two hundred twenty-one".