11101120221 has 8 divisors (see below), whose sum is σ = 15311890080. Its totient is φ = 7145548592.

The previous prime is 11101120201. The next prime is 11101120229. The reversal of 11101120221 is 12202110111.

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 11101120221 - 2¹¹ = 11101118173 is a prime.

It is a super-2 number, since 2×11101120221² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11101120197 and 11101120206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101120229) 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, 63799455 + ... + 63799628.

It is an arithmetic number, because the mean of its divisors is an integer number (1913986260).

Almost surely, 2^11101120221 is an apocalyptic number.

It is an amenable number.

11101120221 is a deficient number, since it is larger than the sum of its proper divisors (4210769859).

11101120221 is a wasteful number, since it uses less digits than its factorization.

11101120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127599115.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11101120221 its reverse (12202110111), we get a palindrome (23303230332).

The spelling of 11101120221 in words is "eleven billion, one hundred one million, one hundred twenty thousand, two hundred twenty-one".