11103202221 has 8 divisors (see below), whose sum is σ = 14808361344. Its totient is φ = 7400088960.

The previous prime is 11103202213. The next prime is 11103202223. The reversal of 11103202221 is 12220230111.

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

It is not a de Polignac number, because 11103202221 - 2³ = 11103202213 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11103202221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103202223) 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, 498756 + ... + 520541.

It is an arithmetic number, because the mean of its divisors is an integer number (1851045168).

Almost surely, 2^11103202221 is an apocalyptic number.

It is an amenable number.

11103202221 is a deficient number, since it is larger than the sum of its proper divisors (3705159123).

11103202221 is a wasteful number, since it uses less digits than its factorization.

11103202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022931.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11103202221 its reverse (12220230111), we get a palindrome (23323432332).

The spelling of 11103202221 in words is "eleven billion, one hundred three million, two hundred two thousand, two hundred twenty-one".