11011003221 has 8 divisors (see below), whose sum is σ = 14771407840. Its totient is φ = 7295633712.

The previous prime is 11011003153. The next prime is 11011003229. The reversal of 11011003221 is 12230011011.

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

It is a de Polignac number, because none of the positive numbers 2^k-11011003221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011003197 and 11011003206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011003229) 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, 11258206 + ... + 11259183.

It is an arithmetic number, because the mean of its divisors is an integer number (1846425980).

Almost surely, 2^11011003221 is an apocalyptic number.

It is an amenable number.

11011003221 is a deficient number, since it is larger than the sum of its proper divisors (3760404619).

11011003221 is a wasteful number, since it uses less digits than its factorization.

11011003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22517555.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 11011003221 its reverse (12230011011), we get a palindrome (23241014232).

The spelling of 11011003221 in words is "eleven billion, eleven million, three thousand, two hundred twenty-one".