1212000100012 has 24 divisors (see below), whose sum is σ = 2404372670000. Its totient is φ = 529943363136.

The previous prime is 1212000099901. The next prime is 1212000100019. The reversal of 1212000100012 is 2100010002121.

It is not an unprimeable number, because it can be changed into a prime (1212000100019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613359387 + ... + 613361362.

Almost surely, 2^{1212000100012} is an apocalyptic number.

It is an amenable number.

1212000100012 is a deficient number, since it is larger than the sum of its proper divisors (1192372569988).

1212000100012 is a wasteful number, since it uses less digits than its factorization.

1212000100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226720785 (or 1226720783 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1212000100012 its reverse (2100010002121), we get a palindrome (3312010102133).

The spelling of 1212000100012 in words is "one trillion, two hundred twelve billion, one hundred thousand, twelve".