121102102112 has 24 divisors (see below), whose sum is σ = 250968173400. Its totient is φ = 57364153344.

The previous prime is 121102102111. The next prime is 121102102117. The reversal of 121102102112 is 211201201121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121102102111) by changing a digit.

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, 99589937 + ... + 99591152.

It is an arithmetic number, because the mean of its divisors is an integer number (10457007225).

Almost surely, 2^121102102112 is an apocalyptic number.

It is an amenable number.

121102102112 is an abundant number, since it is smaller than the sum of its proper divisors (129866071288).

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

121102102112 is a wasteful number, since it uses less digits than its factorization.

121102102112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199181118 (or 199181110 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121102102112 its reverse (211201201121), we get a palindrome (332303303233).

Subtracting 121102102112 from its reverse (211201201121), we obtain a palindrome (90099099009).

The spelling of 121102102112 in words is "one hundred twenty-one billion, one hundred two million, one hundred two thousand, one hundred twelve".