210121011102 has 16 divisors (see below), whose sum is σ = 431599915152. Its totient is φ = 68147354880.

The previous prime is 210121011019. The next prime is 210121011119. The reversal of 210121011102 is 201110121012.

210121011102 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 473245299 + ... + 473245742.

It is an arithmetic number, because the mean of its divisors is an integer number (26974994697).

Almost surely, 2^210121011102 is an apocalyptic number.

210121011102 is an abundant number, since it is smaller than the sum of its proper divisors (221478904050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210121011102 is a wasteful number, since it uses less digits than its factorization.

210121011102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946491083.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 210121011102 its reverse (201110121012), we get a palindrome (411231132114).

The spelling of 210121011102 in words is "two hundred ten billion, one hundred twenty-one million, eleven thousand, one hundred two".