1200012101012 has 12 divisors (see below), whose sum is σ = 2101727132736. Its totient is φ = 599518634520.

The previous prime is 1200012100999. The next prime is 1200012101017. The reversal of 1200012101012 is 2101012100021.

It is a junction number, because it is equal to n+sod(n) for n = 1200012100984 and 1200012101002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200012101017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121848458 + ... + 121858305.

It is an arithmetic number, because the mean of its divisors is an integer number (175143927728).

Almost surely, 2^{1200012101012} is an apocalyptic number.

It is an amenable number.

1200012101012 is a deficient number, since it is larger than the sum of its proper divisors (901715031724).

1200012101012 is a wasteful number, since it uses less digits than its factorization.

1200012101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243707998 (or 243707996 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1200012101012 its reverse (2101012100021), we get a palindrome (3301024201033).

Subtracting 1200012101012 from its reverse (2101012100021), we obtain a palindrome (900999999009).

The spelling of 1200012101012 in words is "one trillion, two hundred billion, twelve million, one hundred one thousand, twelve".