12121103110 has 16 divisors (see below), whose sum is σ = 21914104176. Its totient is φ = 4827081568.

The previous prime is 12121103089. The next prime is 12121103119. The reversal of 12121103110 is 1130112121.

It is a happy number.

12121103110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12121103110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121103119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2667577 + ... + 2672116.

It is an arithmetic number, because the mean of its divisors is an integer number (1369631511).

Almost surely, 2^12121103110 is an apocalyptic number.

12121103110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121103110 is a deficient number, since it is larger than the sum of its proper divisors (9793001066).

12121103110 is a wasteful number, since it uses less digits than its factorization.

12121103110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5339927.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12121103110 its reverse (1130112121), we get a palindrome (13251215231).

The spelling of 12121103110 in words is "twelve billion, one hundred twenty-one million, one hundred three thousand, one hundred ten".