11102011111221 has 8 divisors (see below), whose sum is σ = 14824354517280. Its totient is φ = 7390504222992.

The previous prime is 11102011111207. The next prime is 11102011111253. The reversal of 11102011111221 is 12211111020111.

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

It is not a de Polignac number, because 11102011111221 - 2⁹ = 11102011110709 is a prime.

It is a super-2 number, since 2×11102011111221² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11102011111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102011116221) 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, 2709127066 + ... + 2709131163.

It is an arithmetic number, because the mean of its divisors is an integer number (1853044314660).

Almost surely, 2^{11102011111221} is an apocalyptic number.

It is an amenable number.

11102011111221 is a deficient number, since it is larger than the sum of its proper divisors (3722343406059).

11102011111221 is an equidigital number, since it uses as much as digits as its factorization.

11102011111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5418258915.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 11102011111221 its reverse (12211111020111), we get a palindrome (23313122131332).

The spelling of 11102011111221 in words is "eleven trillion, one hundred two billion, eleven million, one hundred eleven thousand, two hundred twenty-one".