11102012221 has 8 divisors (see below), whose sum is σ = 11117880000. Its totient is φ = 11086158720.

The previous prime is 11102012219. The next prime is 11102012239. The reversal of 11102012221 is 12221020111.

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

It is a cyclic number.

It is not a de Polignac number, because 11102012221 - 2¹ = 11102012219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102072221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3117640 + ... + 3121198.

It is an arithmetic number, because the mean of its divisors is an integer number (1389735000).

Almost surely, 2^11102012221 is an apocalyptic number.

It is an amenable number.

11102012221 is a deficient number, since it is larger than the sum of its proper divisors (15867779).

11102012221 is a wasteful number, since it uses less digits than its factorization.

11102012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7139.

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

Adding to 11102012221 its reverse (12221020111), we get a palindrome (23323032332).

The spelling of 11102012221 in words is "eleven billion, one hundred two million, twelve thousand, two hundred twenty-one".