210002001121 has 16 divisors (see below), whose sum is σ = 229517349120. Its totient is φ = 190557592720.

The previous prime is 210002001089. The next prime is 210002001197. The reversal of 210002001121 is 121100200012.

It is not a de Polignac number, because 210002001121 - 2⁵ = 210002001089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210002001098 and 210002001107.

It is not an unprimeable number, because it can be changed into a prime (210002001221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31994586 + ... + 32001148.

It is an arithmetic number, because the mean of its divisors is an integer number (14344834320).

Almost surely, 2^210002001121 is an apocalyptic number.

It is an amenable number.

210002001121 is a deficient number, since it is larger than the sum of its proper divisors (19515347999).

210002001121 is a wasteful number, since it uses less digits than its factorization.

210002001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11516.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210002001121 its reverse (121100200012), we get a palindrome (331102201133).

The spelling of 210002001121 in words is "two hundred ten billion, two million, one thousand, one hundred twenty-one".