12010121012 has 24 divisors (see below), whose sum is σ = 21168201600. Its totient is φ = 5962139136.

The previous prime is 12010121009. The next prime is 12010121047. The reversal of 12010121012 is 21012101021.

It is a junction number, because it is equal to n+sod(n) for n = 12010120984 and 12010121002.

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, 668564 + ... + 686292.

It is an arithmetic number, because the mean of its divisors is an integer number (882008400).

Almost surely, 2^12010121012 is an apocalyptic number.

It is an amenable number.

12010121012 is a deficient number, since it is larger than the sum of its proper divisors (9158080588).

12010121012 is a wasteful number, since it uses less digits than its factorization.

12010121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18935 (or 18933 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12010121012 its reverse (21012101021), we get a palindrome (33022222033).

The spelling of 12010121012 in words is "twelve billion, ten million, one hundred twenty-one thousand, twelve".