11101102102221 has 32 divisors (see below), whose sum is σ = 15968366697600. Its totient is φ = 6834196162560.

The previous prime is 11101102102213. The next prime is 11101102102247. The reversal of 11101102102221 is 12220120110111.

It is a happy number.

It is not a de Polignac number, because 11101102102221 - 2³ = 11101102102213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11101102102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11101102102271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1972906 + ... + 5108283.

It is an arithmetic number, because the mean of its divisors is an integer number (499011459300).

Almost surely, 2^{11101102102221} is an apocalyptic number.

It is an amenable number.

11101102102221 is a deficient number, since it is larger than the sum of its proper divisors (4867264595379).

11101102102221 is a wasteful number, since it uses less digits than its factorization.

11101102102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7081789.

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

Adding to 11101102102221 its reverse (12220120110111), we get a palindrome (23321222212332).

The spelling of 11101102102221 in words is "eleven trillion, one hundred one billion, one hundred two million, one hundred two thousand, two hundred twenty-one".