2002203402121 has 24 divisors (see below), whose sum is σ = 2299383604224. Its totient is φ = 1736603631360.

The previous prime is 2002203402083. The next prime is 2002203402127. The reversal of 2002203402121 is 1212043022002.

It is not a de Polignac number, because 2002203402121 - 2⁷ = 2002203401993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2002203402127) 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 23 ways as a sum of consecutive naturals, for example, 1169856 + ... + 2317966.

It is an arithmetic number, because the mean of its divisors is an integer number (95807650176).

Almost surely, 2^{2002203402121} is an apocalyptic number.

It is an amenable number.

2002203402121 is a deficient number, since it is larger than the sum of its proper divisors (297180202103).

2002203402121 is a wasteful number, since it uses less digits than its factorization.

2002203402121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148761 (or 1148748 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 2002203402121 its reverse (1212043022002), we get a palindrome (3214246424123).

The spelling of 2002203402121 in words is "two trillion, two billion, two hundred three million, four hundred two thousand, one hundred twenty-one".