1213100012132 has 12 divisors (see below), whose sum is σ = 2168093639040. Its totient is φ = 593644686696.

The previous prime is 1213100012099. The next prime is 1213100012149. The reversal of 1213100012132 is 2312100013121.

It is a super-2 number, since 2×1213100012132² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1213100012132.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3226329632 + ... + 3226330007.

It is an arithmetic number, because the mean of its divisors is an integer number (180674469920).

Almost surely, 2^{1213100012132} is an apocalyptic number.

It is an amenable number.

1213100012132 is a deficient number, since it is larger than the sum of its proper divisors (954993626908).

1213100012132 is a wasteful number, since it uses less digits than its factorization.

1213100012132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6452659690 (or 6452659688 counting only the distinct ones).

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

Adding to 1213100012132 its reverse (2312100013121), we get a palindrome (3525200025253).

The spelling of 1213100012132 in words is "one trillion, two hundred thirteen billion, one hundred million, twelve thousand, one hundred thirty-two".