10722217 has 4 divisors (see below), whose sum is σ = 11696976. Its totient is φ = 9747460.

The previous prime is 10722169. The next prime is 10722227. The reversal of 10722217 is 71222701.

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, and also an emirpimes, since its reverse is a distinct semiprime: 71222701 = 11 ⋅6474791.

It is a cyclic number.

It is not a de Polignac number, because 10722217 - 2¹⁵ = 10689449 is a prime.

It is a super-2 number, since 2×10722217² = 229931874790178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10722227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487363 + ... + 487384.

It is an arithmetic number, because the mean of its divisors is an integer number (2924244).

Almost surely, 2^10722217 is an apocalyptic number.

It is an amenable number.

10722217 is a deficient number, since it is larger than the sum of its proper divisors (974759).

10722217 is an equidigital number, since it uses as much as digits as its factorization.

10722217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974758.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 10722217 is about 3274.4796533190. The cubic root of 10722217 is about 220.5099533937.

Adding to 10722217 its reverse (71222701), we get a palindrome (81944918).

It can be divided in two parts, 10 and 722217, that added together give a palindrome (722227).

The spelling of 10722217 in words is "ten million, seven hundred twenty-two thousand, two hundred seventeen".