10027221165 has 24 divisors (see below), whose sum is σ = 18717480600. Its totient is φ = 4936477824.

The previous prime is 10027221137. The next prime is 10027221199. The reversal of 10027221165 is 56112272001.

It can be written as a sum of positive squares in 4 ways, for example, as 1004004 + 10026217161 = 1002^2 + 100131^2 .

It is not a de Polignac number, because 10027221165 - 2¹⁰ = 10027220141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8569690 + ... + 8570859.

It is an arithmetic number, because the mean of its divisors is an integer number (779895025).

Almost surely, 2^10027221165 is an apocalyptic number.

10027221165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10027221165 is a deficient number, since it is larger than the sum of its proper divisors (8690259435).

10027221165 is a wasteful number, since it uses less digits than its factorization.

10027221165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17140573 (or 17140570 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

Adding to 10027221165 its reverse (56112272001), we get a palindrome (66139493166).

The spelling of 10027221165 in words is "ten billion, twenty-seven million, two hundred twenty-one thousand, one hundred sixty-five".