1002221111101 has 16 divisors (see below), whose sum is σ = 1146146319360. Its totient is φ = 858483803520.

The previous prime is 1002221111093. The next prime is 1002221111117. The reversal of 1002221111101 is 1011111222001.

It is a happy number.

It is not a de Polignac number, because 1002221111101 - 2³ = 1002221111093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002221111501) 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 15 ways as a sum of consecutive naturals, for example, 128206545 + ... + 128214361.

It is an arithmetic number, because the mean of its divisors is an integer number (71634144960).

Almost surely, 2^{1002221111101} is an apocalyptic number.

It is an amenable number.

1002221111101 is a deficient number, since it is larger than the sum of its proper divisors (143925208259).

1002221111101 is an equidigital number, since it uses as much as digits as its factorization.

1002221111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17484.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1002221111101 its reverse (1011111222001), we get a palindrome (2013332333102).

The spelling of 1002221111101 in words is "one trillion, two billion, two hundred twenty-one million, one hundred eleven thousand, one hundred one".