11102102221 has 32 divisors (see below), whose sum is σ = 13142787840. Its totient is φ = 9180864000.

The previous prime is 11102102213. The next prime is 11102102237. The reversal of 11102102221 is 12220120111.

It is not a de Polignac number, because 11102102221 - 2³ = 11102102213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102102201) 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, 15837171 + ... + 15837871.

It is an arithmetic number, because the mean of its divisors is an integer number (410712120).

Almost surely, 2^11102102221 is an apocalyptic number.

It is an amenable number.

11102102221 is a deficient number, since it is larger than the sum of its proper divisors (2040685619).

11102102221 is a wasteful number, since it uses less digits than its factorization.

11102102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11102102221 its reverse (12220120111), we get a palindrome (23322222332).

The spelling of 11102102221 in words is "eleven billion, one hundred two million, one hundred two thousand, two hundred twenty-one".