11110012221021 has 16 divisors (see below), whose sum is σ = 17119762012800. Its totient is φ = 6277246069248.

The previous prime is 11110012221017. The next prime is 11110012221029. The reversal of 11110012221021 is 12012221001111.

It is a happy number.

It is not a de Polignac number, because 11110012221021 - 2² = 11110012221017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110012221029) 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, 2972179036 + ... + 2972182773.

It is an arithmetic number, because the mean of its divisors is an integer number (1069985125800).

Almost surely, 2^{11110012221021} is an apocalyptic number.

It is an amenable number.

11110012221021 is a deficient number, since it is larger than the sum of its proper divisors (6009749791779).

11110012221021 is an equidigital number, since it uses as much as digits as its factorization.

11110012221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5944361908.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11110012221021 its reverse (12012221001111), we get a palindrome (23122233222132).

The spelling of 11110012221021 in words is "eleven trillion, one hundred ten billion, twelve million, two hundred twenty-one thousand, twenty-one".