2002100021201 has 4 divisors (see below), whose sum is σ = 2288114309952. Its totient is φ = 1716085732452.

The previous prime is 2002100021191. The next prime is 2002100021219. The reversal of 2002100021201 is 1021200012002.

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 de Polignac number, because none of the positive numbers 2^k-2002100021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2002100021231) 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, 143007144365 + ... + 143007144378.

It is an arithmetic number, because the mean of its divisors is an integer number (572028577488).

Almost surely, 2^{2002100021201} is an apocalyptic number.

It is an amenable number.

2002100021201 is a deficient number, since it is larger than the sum of its proper divisors (286014288751).

2002100021201 is an equidigital number, since it uses as much as digits as its factorization.

2002100021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286014288750.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2002100021201 its reverse (1021200012002), we get a palindrome (3023300033203).

The spelling of 2002100021201 in words is "two trillion, two billion, one hundred million, twenty-one thousand, two hundred one".