11021221003 has 8 divisors (see below), whose sum is σ = 11890096848. Its totient is φ = 10155357984.

The previous prime is 11021220953. The next prime is 11021221007. The reversal of 11021221003 is 30012212011.

11021221003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11021221003 - 2³³ = 2431286411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11021221007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745600 + ... + 760237.

It is an arithmetic number, because the mean of its divisors is an integer number (1486262106).

Almost surely, 2^11021221003 is an apocalyptic number.

11021221003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11021221003 is a deficient number, since it is larger than the sum of its proper divisors (868875845).

11021221003 is a wasteful number, since it uses less digits than its factorization.

11021221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506413.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11021221003 its reverse (30012212011), we get a palindrome (41033433014).

The spelling of 11021221003 in words is "eleven billion, twenty-one million, two hundred twenty-one thousand, three".