210020121002 has 8 divisors (see below), whose sum is σ = 325893291300. Its totient is φ = 101389023904.

The previous prime is 210020120951. The next prime is 210020121013. The reversal of 210020121002 is 200121020012.

It is a happy number.

210020121002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 203715919801 + 6304201201 = 451349^2 + 79399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1810518227 + ... + 1810518342.

Almost surely, 2^210020121002 is an apocalyptic number.

210020121002 is a deficient number, since it is larger than the sum of its proper divisors (115873170298).

210020121002 is a wasteful number, since it uses less digits than its factorization.

210020121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621036600.

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

Adding to 210020121002 its reverse (200121020012), we get a palindrome (410141141014).

The spelling of 210020121002 in words is "two hundred ten billion, twenty million, one hundred twenty-one thousand, two".