12110121012 has 24 divisors (see below), whose sum is σ = 30825762912. Its totient is φ = 3669733600.

The previous prime is 12110120999. The next prime is 12110121083. The reversal of 12110121012 is 21012101121.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 45871539 + ... + 45871802.

It is an arithmetic number, because the mean of its divisors is an integer number (1284406788).

Almost surely, 2^12110121012 is an apocalyptic number.

12110121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12110121012 is an abundant number, since it is smaller than the sum of its proper divisors (18715641900).

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

12110121012 is a wasteful number, since it uses less digits than its factorization.

12110121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91743359 (or 91743357 counting only the distinct ones).

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

Adding to 12110121012 its reverse (21012101121), we get a palindrome (33122222133).

The spelling of 12110121012 in words is "twelve billion, one hundred ten million, one hundred twenty-one thousand, twelve".