10517022221 has 8 divisors (see below), whose sum is σ = 10663286400. Its totient is φ = 10371382560.

The previous prime is 10517022179. The next prime is 10517022223. The reversal of 10517022221 is 12222071501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10517022221 is a prime.

It is a super-2 number, since 2×10517022221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10517022223) 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, 122165 + ... + 189626.

It is an arithmetic number, because the mean of its divisors is an integer number (1332910800).

Almost surely, 2^10517022221 is an apocalyptic number.

It is an amenable number.

10517022221 is a deficient number, since it is larger than the sum of its proper divisors (146264179).

10517022221 is an equidigital number, since it uses as much as digits as its factorization.

10517022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312259.

The product of its (nonzero) digits is 560, while the sum is 23.

Adding to 10517022221 its reverse (12222071501), we get a palindrome (22739093722).

The spelling of 10517022221 in words is "ten billion, five hundred seventeen million, twenty-two thousand, two hundred twenty-one".