1212211130012 has 24 divisors (see below), whose sum is σ = 2151231635616. Its totient is φ = 597629104128.

The previous prime is 1212211129981. The next prime is 1212211130057. The reversal of 1212211130012 is 2100311122121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6860648 + ... + 7035119.

It is an arithmetic number, because the mean of its divisors is an integer number (89634651484).

Almost surely, 2^{1212211130012} is an apocalyptic number.

It is an amenable number.

1212211130012 is a deficient number, since it is larger than the sum of its proper divisors (939020505604).

1212211130012 is a wasteful number, since it uses less digits than its factorization.

1212211130012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13896077 (or 13896075 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1212211130012 its reverse (2100311122121), we get a palindrome (3312522252133).

The spelling of 1212211130012 in words is "one trillion, two hundred twelve billion, two hundred eleven million, one hundred thirty thousand, twelve".