11102011012221 has 16 divisors (see below), whose sum is σ = 15296960299008. Its totient is φ = 7154725359600.

The previous prime is 11102011012201. The next prime is 11102011012237. The reversal of 11102011012221 is 12221011020111.

It is a happy number.

11102011012221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11102011012221 - 2²¹ = 11102008915069 is a prime.

It is a super-2 number, since 2×11102011012221² (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 11102011012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102011012201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65434741 + ... + 65604186.

It is an arithmetic number, because the mean of its divisors is an integer number (956060018688).

Almost surely, 2^{11102011012221} is an apocalyptic number.

It is an amenable number.

11102011012221 is a deficient number, since it is larger than the sum of its proper divisors (4194949286787).

11102011012221 is a wasteful number, since it uses less digits than its factorization.

11102011012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131039872.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11102011012221 its reverse (12221011020111), we get a palindrome (23323022032332).

The spelling of 11102011012221 in words is "eleven trillion, one hundred two billion, eleven million, twelve thousand, two hundred twenty-one".