2002000010121 has 16 divisors (see below), whose sum is σ = 2973550444800. Its totient is φ = 1331235646704.

The previous prime is 2002000010107. The next prime is 2002000010201. The reversal of 2002000010121 is 1210100002002.

It is not a de Polignac number, because 2002000010121 - 2⁶ = 2002000010057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2000000010121) 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, 95295601 + ... + 95316606.

It is an arithmetic number, because the mean of its divisors is an integer number (185846902800).

Almost surely, 2^{2002000010121} is an apocalyptic number.

It is an amenable number.

2002000010121 is a deficient number, since it is larger than the sum of its proper divisors (971550434679).

2002000010121 is a wasteful number, since it uses less digits than its factorization.

2002000010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190612605 (or 190612599 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2002000010121 its reverse (1210100002002), we get a palindrome (3212100012123).

The spelling of 2002000010121 in words is "two trillion, two billion, ten thousand, one hundred twenty-one".