1212100200012 has 48 divisors (see below), whose sum is σ = 3144041556992. Its totient is φ = 360923135040.

The previous prime is 1212100199953. The next prime is 1212100200023. The reversal of 1212100200012 is 2100020012121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 125315698 + ... + 125325369.

Almost surely, 2^{1212100200012} is an apocalyptic number.

1212100200012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1212100200012 is an abundant number, since it is smaller than the sum of its proper divisors (1931941356980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1212100200012 is a wasteful number, since it uses less digits than its factorization.

1212100200012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250641118 (or 250641116 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212100200012 its reverse (2100020012121), we get a palindrome (3312120212133).

The spelling of 1212100200012 in words is "one trillion, two hundred twelve billion, one hundred million, two hundred thousand, twelve".