11265343221 has 8 divisors (see below), whose sum is σ = 16385953824. Its totient is φ = 6827480720.

The previous prime is 11265343171. The next prime is 11265343289. The reversal of 11265343221 is 12234356211.

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 11265343221 - 2⁶ = 11265343157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11265343321) 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, 170686986 + ... + 170687051.

It is an arithmetic number, because the mean of its divisors is an integer number (2048244228).

Almost surely, 2^11265343221 is an apocalyptic number.

11265343221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11265343221 is a deficient number, since it is larger than the sum of its proper divisors (5120610603).

11265343221 is a wasteful number, since it uses less digits than its factorization.

11265343221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341374051.

The product of its digits is 8640, while the sum is 30.

Adding to 11265343221 its reverse (12234356211), we get a palindrome (23499699432).

The spelling of 11265343221 in words is "eleven billion, two hundred sixty-five million, three hundred forty-three thousand, two hundred twenty-one".