11202112221 has 8 divisors (see below), whose sum is σ = 15090130944. Its totient is φ = 7391084160.

The previous prime is 11202112219. The next prime is 11202112223. The reversal of 11202112221 is 12221120211.

It is an interprime number because it is at equal distance from previous prime (11202112219) and next prime (11202112223).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11202112221 - 2¹ = 11202112219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11202112221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202112223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19247325 + ... + 19247906.

It is an arithmetic number, because the mean of its divisors is an integer number (1886266368).

Almost surely, 2^11202112221 is an apocalyptic number.

It is an amenable number.

11202112221 is a deficient number, since it is larger than the sum of its proper divisors (3888018723).

11202112221 is an equidigital number, since it uses as much as digits as its factorization.

11202112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38495331.

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

Adding to 11202112221 its reverse (12221120211), we get a palindrome (23423232432).

The spelling of 11202112221 in words is "eleven billion, two hundred two million, one hundred twelve thousand, two hundred twenty-one".