2002111110121 has 4 divisors (see below), whose sum is σ = 2011089187072. Its totient is φ = 1993133033172.

The previous prime is 2002111110079. The next prime is 2002111110173. The reversal of 2002111110121 is 1210111112002.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2002111110121 - 2¹³ = 2002111101929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002211110121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4489038141 + ... + 4489038586.

It is an arithmetic number, because the mean of its divisors is an integer number (502772296768).

Almost surely, 2^{2002111110121} is an apocalyptic number.

It is an amenable number.

2002111110121 is a deficient number, since it is larger than the sum of its proper divisors (8978076951).

2002111110121 is an equidigital number, since it uses as much as digits as its factorization.

2002111110121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8978076950.

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

Adding to 2002111110121 its reverse (1210111112002), we get a palindrome (3212222222123).

The spelling of 2002111110121 in words is "two trillion, two billion, one hundred eleven million, one hundred ten thousand, one hundred twenty-one".