11168011221 has 8 divisors (see below), whose sum is σ = 14894295840. Its totient is φ = 7443533712.

The previous prime is 11168011207. The next prime is 11168011313. The reversal of 11168011221 is 12211086111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11168011221 - 2¹³ = 11168003029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11168011191 and 11168011200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11168011321) 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, 437290 + ... + 462123.

It is an arithmetic number, because the mean of its divisors is an integer number (1861786980).

Almost surely, 2^11168011221 is an apocalyptic number.

It is an amenable number.

11168011221 is a deficient number, since it is larger than the sum of its proper divisors (3726284619).

11168011221 is an equidigital number, since it uses as much as digits as its factorization.

11168011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903555.

The product of its (nonzero) digits is 192, while the sum is 24.

Adding to 11168011221 its reverse (12211086111), we get a palindrome (23379097332).

The spelling of 11168011221 in words is "eleven billion, one hundred sixty-eight million, eleven thousand, two hundred twenty-one".