12121110121102 has 16 divisors (see below), whose sum is σ = 19434908277792. Its totient is φ = 5655661137280.

The previous prime is 12121110121097. The next prime is 12121110121123. The reversal of 12121110121102 is 20112101112121.

It is a super-2 number, since 2×12121110121102² (a number of 27 digits) contains 22 as substring.

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, 3213441943 + ... + 3213445714.

It is an arithmetic number, because the mean of its divisors is an integer number (1214681767362).

Almost surely, 2^{12121110121102} is an apocalyptic number.

12121110121102 is a deficient number, since it is larger than the sum of its proper divisors (7313798156690).

12121110121102 is a wasteful number, since it uses less digits than its factorization.

12121110121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6426887723.

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

Adding to 12121110121102 its reverse (20112101112121), we get a palindrome (32233211233223).

The spelling of 12121110121102 in words is "twelve trillion, one hundred twenty-one billion, one hundred ten million, one hundred twenty-one thousand, one hundred two".