12133121012 has 6 divisors (see below), whose sum is σ = 21232961778. Its totient is φ = 6066560504.

The previous prime is 12133120997. The next prime is 12133121027. The reversal of 12133121012 is 21012133121.

It is an interprime number because it is at equal distance from previous prime (12133120997) and next prime (12133121027).

It can be written as a sum of positive squares in only one way, i.e., 10468154596 + 1664966416 = 102314^2 + 40804^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1516640123 + ... + 1516640130.

It is an arithmetic number, because the mean of its divisors is an integer number (3538826963).

Almost surely, 2^12133121012 is an apocalyptic number.

It is an amenable number.

12133121012 is a deficient number, since it is larger than the sum of its proper divisors (9099840766).

12133121012 is a wasteful number, since it uses less digits than its factorization.

12133121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033280257 (or 3033280255 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12133121012 its reverse (21012133121), we get a palindrome (33145254133).

The spelling of 12133121012 in words is "twelve billion, one hundred thirty-three million, one hundred twenty-one thousand, twelve".