11236460221 has 4 divisors (see below), whose sum is σ = 12841668832. Its totient is φ = 9631251612.

The previous prime is 11236460197. The next prime is 11236460297. The reversal of 11236460221 is 12206463211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12206463211 = 29483 ⋅414017.

It is a cyclic number.

It is not a de Polignac number, because 11236460221 - 2⁹ = 11236459709 is a prime.

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 11236460221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11236460021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 802604295 + ... + 802604308.

It is an arithmetic number, because the mean of its divisors is an integer number (3210417208).

Almost surely, 2^11236460221 is an apocalyptic number.

It is an amenable number.

11236460221 is a deficient number, since it is larger than the sum of its proper divisors (1605208611).

11236460221 is an equidigital number, since it uses as much as digits as its factorization.

11236460221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1605208610.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 11236460221 in words is "eleven billion, two hundred thirty-six million, four hundred sixty thousand, two hundred twenty-one".