210120020102 has 16 divisors (see below), whose sum is σ = 316954644000. Its totient is φ = 104469108480.

The previous prime is 210120020087. The next prime is 210120020141. The reversal of 210120020102 is 201020021012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506102 + ... + 822422.

It is an arithmetic number, because the mean of its divisors is an integer number (19809665250).

Almost surely, 2^210120020102 is an apocalyptic number.

210120020102 is a deficient number, since it is larger than the sum of its proper divisors (106834623898).

210120020102 is a wasteful number, since it uses less digits than its factorization.

210120020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318191.

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

Adding to 210120020102 its reverse (201020021012), we get a palindrome (411140041114).

The spelling of 210120020102 in words is "two hundred ten billion, one hundred twenty million, twenty thousand, one hundred two".