11102202121 has 16 divisors (see below), whose sum is σ = 12045141504. Its totient is φ = 10192137984.

The previous prime is 11102202119. The next prime is 11102202127. The reversal of 11102202121 is 12120220111.

It is a cyclic number.

It is not a de Polignac number, because 11102202121 - 2¹ = 11102202119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11102202127) 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, 543336 + ... + 563398.

It is an arithmetic number, because the mean of its divisors is an integer number (752821344).

Almost surely, 2^11102202121 is an apocalyptic number.

It is an amenable number.

11102202121 is a deficient number, since it is larger than the sum of its proper divisors (942939383).

11102202121 is a wasteful number, since it uses less digits than its factorization.

11102202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20880.

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

Adding to 11102202121 its reverse (12120220111), we get a palindrome (23222422232).

The spelling of 11102202121 in words is "eleven billion, one hundred two million, two hundred two thousand, one hundred twenty-one".