11213122131212 has 6 divisors (see below), whose sum is σ = 19622963729628. Its totient is φ = 5606561065604.

The previous prime is 11213122131199. The next prime is 11213122131221. The reversal of 11213122131212 is 21213122131211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401640266398 + ... + 1401640266405.

It is an arithmetic number, because the mean of its divisors is an integer number (3270493954938).

Almost surely, 2^{11213122131212} is an apocalyptic number.

It is an amenable number.

11213122131212 is a deficient number, since it is larger than the sum of its proper divisors (8409841598416).

11213122131212 is a wasteful number, since it uses less digits than its factorization.

11213122131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803280532807 (or 2803280532805 counting only the distinct ones).

The product of its digits is 288, while the sum is 23.

Adding to 11213122131212 its reverse (21213122131211), we get a palindrome (32426244262423).

Subtracting 11213122131212 from its reverse (21213122131211), we obtain a palindrome (9999999999999).

The spelling of 11213122131212 in words is "eleven trillion, two hundred thirteen billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred twelve".