12132121330 has 32 divisors (see below), whose sum is σ = 25237941120. Its totient is φ = 4112845440.

The previous prime is 12132121291. The next prime is 12132121361. The reversal of 12132121330 is 3312123121.

It is a junction number, because it is equal to n+sod(n) for n = 12132121298 and 12132121307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 967456 + ... + 979915.

It is an arithmetic number, because the mean of its divisors is an integer number (788685660).

Almost surely, 2^12132121330 is an apocalyptic number.

12132121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12132121330 is an abundant number, since it is smaller than the sum of its proper divisors (13105819790).

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

12132121330 is a wasteful number, since it uses less digits than its factorization.

12132121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1947474.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12132121330 its reverse (3312123121), we get a palindrome (15444244451).

The spelling of 12132121330 in words is "twelve billion, one hundred thirty-two million, one hundred twenty-one thousand, three hundred thirty".