12102121132 has 12 divisors (see below), whose sum is σ = 21180772816. Its totient is φ = 6050471760.

The previous prime is 12102121127. The next prime is 12102121147. The reversal of 12102121132 is 23112120121.

It is a super-2 number, since 2×12102121132² (a number of 21 digits) contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 99219 + ... + 184522.

Almost surely, 2^12102121132 is an apocalyptic number.

It is an amenable number.

12102121132 is a deficient number, since it is larger than the sum of its proper divisors (9078651684).

12102121132 is a wasteful number, since it uses less digits than its factorization.

12102121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294408 (or 294406 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12102121132 its reverse (23112120121), we get a palindrome (35214241253).

The spelling of 12102121132 in words is "twelve billion, one hundred two million, one hundred twenty-one thousand, one hundred thirty-two".