1210200120012 has 24 divisors (see below), whose sum is σ = 3041015686576. Its totient is φ = 372369267648.

The previous prime is 1210200120011. The next prime is 1210200120043. The reversal of 1210200120012 is 2100210020121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1210200120012.

It is not an unprimeable number, because it can be changed into a prime (1210200120011) 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 7 ways as a sum of consecutive naturals, for example, 3878846383 + ... + 3878846694.

Almost surely, 2^{1210200120012} is an apocalyptic number.

1210200120012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210200120012 is an abundant number, since it is smaller than the sum of its proper divisors (1830815566564).

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

1210200120012 is a wasteful number, since it uses less digits than its factorization.

1210200120012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7757693097 (or 7757693095 counting only the distinct ones).

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

Adding to 1210200120012 its reverse (2100210020121), we get a palindrome (3310410140133).

The spelling of 1210200120012 in words is "one trillion, two hundred ten billion, two hundred million, one hundred twenty thousand, twelve".