11122102221 has 16 divisors (see below), whose sum is σ = 15341990400. Its totient is φ = 7159541760.

The previous prime is 11122102207. The next prime is 11122102237. The reversal of 11122102221 is 12220122111.

It is not a de Polignac number, because 11122102221 - 2¹¹ = 11122100173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11122102221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122102261) 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, 91420 + ... + 174933.

It is an arithmetic number, because the mean of its divisors is an integer number (958874400).

Almost surely, 2^11122102221 is an apocalyptic number.

It is an amenable number.

11122102221 is a deficient number, since it is larger than the sum of its proper divisors (4219888179).

11122102221 is a wasteful number, since it uses less digits than its factorization.

11122102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266836.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11122102221 its reverse (12220122111), we get a palindrome (23342224332).

The spelling of 11122102221 in words is "eleven billion, one hundred twenty-two million, one hundred two thousand, two hundred twenty-one".