2002020102121 has 16 divisors (see below), whose sum is σ = 2294996457600. Its totient is φ = 1731083004288.

The previous prime is 2002020102119. The next prime is 2002020102191. The reversal of 2002020102121 is 1212010202002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2002020102121 - 2¹ = 2002020102119 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 (2002020102191) 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, 45513661 + ... + 45557626.

It is an arithmetic number, because the mean of its divisors is an integer number (143437278600).

Almost surely, 2^{2002020102121} is an apocalyptic number.

It is an amenable number.

2002020102121 is a deficient number, since it is larger than the sum of its proper divisors (292976355479).

2002020102121 is a wasteful number, since it uses less digits than its factorization.

2002020102121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91071408.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2002020102121 its reverse (1212010202002), we get a palindrome (3214030304123).

The spelling of 2002020102121 in words is "two trillion, two billion, twenty million, one hundred two thousand, one hundred twenty-one".