260202221 has 16 divisors (see below), whose sum is σ = 280339200. Its totient is φ = 240634368.

The previous prime is 260202211. The next prime is 260202227. The reversal of 260202221 is 122202062.

It is a cyclic number.

It is not a de Polignac number, because 260202221 - 2¹⁸ = 259940077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 260202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260202227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420050 + ... + 420668.

It is an arithmetic number, because the mean of its divisors is an integer number (17521200).

Almost surely, 2^260202221 is an apocalyptic number.

It is an amenable number.

260202221 is a deficient number, since it is larger than the sum of its proper divisors (20136979).

260202221 is a wasteful number, since it uses less digits than its factorization.

260202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 260202221 is about 16130.7848848095. The cubic root of 260202221 is about 638.4158583384.

Adding to 260202221 its reverse (122202062), we get a palindrome (382404283).

The spelling of 260202221 in words is "two hundred sixty million, two hundred two thousand, two hundred twenty-one".