11032220121 has 16 divisors (see below), whose sum is σ = 15934880640. Its totient is φ = 6789054480.

The previous prime is 11032220113. The next prime is 11032220123. The reversal of 11032220121 is 12102223011.

It is not a de Polignac number, because 11032220121 - 2³ = 11032220113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11032220121.

It is not an unprimeable number, because it can be changed into a prime (11032220123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 830325 + ... + 843506.

It is an arithmetic number, because the mean of its divisors is an integer number (995930040).

Almost surely, 2^11032220121 is an apocalyptic number.

It is an amenable number.

11032220121 is a deficient number, since it is larger than the sum of its proper divisors (4902660519).

11032220121 is an equidigital number, since it uses as much as digits as its factorization.

11032220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673873 (or 1673847 counting only the distinct ones).

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

Adding to 11032220121 its reverse (12102223011), we get a palindrome (23134443132).

The spelling of 11032220121 in words is "eleven billion, thirty-two million, two hundred twenty thousand, one hundred twenty-one".