12121121111102 has 16 divisors (see below), whose sum is σ = 18247197155712. Its totient is φ = 6038743316760.

The previous prime is 12121121111093. The next prime is 12121121111117. The reversal of 12121121111102 is 20111112112121.

12121121111102 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4172738 + ... + 6453989.

It is an arithmetic number, because the mean of its divisors is an integer number (1140449822232).

Almost surely, 2^{12121121111102} is an apocalyptic number.

12121121111102 is a deficient number, since it is larger than the sum of its proper divisors (6126076044610).

12121121111102 is a wasteful number, since it uses less digits than its factorization.

12121121111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10628783.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 12121121111102 its reverse (20111112112121), we get a palindrome (32232233223223).

The spelling of 12121121111102 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty-one million, one hundred eleven thousand, one hundred two".