11365260221 has 8 divisors (see below), whose sum is σ = 12995548800. Its totient is φ = 9736641648.

The previous prime is 11365260173. The next prime is 11365260259. The reversal of 11365260221 is 12206256311.

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 11365260221 - 2⁶ = 11365260157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11365260421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 402881 + ... + 430166.

It is an arithmetic number, because the mean of its divisors is an integer number (1624443600).

Almost surely, 2^11365260221 is an apocalyptic number.

It is an amenable number.

11365260221 is a deficient number, since it is larger than the sum of its proper divisors (1630288579).

11365260221 is an equidigital number, since it uses as much as digits as its factorization.

11365260221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835003.

The product of its (nonzero) digits is 4320, while the sum is 29.

The spelling of 11365260221 in words is "eleven billion, three hundred sixty-five million, two hundred sixty thousand, two hundred twenty-one".