12121102132 has 6 divisors (see below), whose sum is σ = 21211928738. Its totient is φ = 6060551064.

The previous prime is 12121102127. The next prime is 12121102141. The reversal of 12121102132 is 23120112121.

It can be written as a sum of positive squares in only one way, i.e., 8429810596 + 3691291536 = 91814^2 + 60756^2 .

It is a super-2 number, since 2×12121102132² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1515137763 + ... + 1515137770.

Almost surely, 2^12121102132 is an apocalyptic number.

It is an amenable number.

12121102132 is a deficient number, since it is larger than the sum of its proper divisors (9090826606).

12121102132 is a wasteful number, since it uses less digits than its factorization.

12121102132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3030275537 (or 3030275535 counting only the distinct ones).

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

Adding to 12121102132 its reverse (23120112121), we get a palindrome (35241214253).

The spelling of 12121102132 in words is "twelve billion, one hundred twenty-one million, one hundred two thousand, one hundred thirty-two".