1210012001112 has 128 divisors (see below), whose sum is σ = 3289678479360. Its totient is φ = 369383854080.

The previous prime is 1210012001089. The next prime is 1210012001131. The reversal of 1210012001112 is 2111002100121.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6312393 + ... + 6501255.

It is an arithmetic number, because the mean of its divisors is an integer number (25700613120).

Almost surely, 2^{1210012001112} is an apocalyptic number.

1210012001112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210012001112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1644839239680).

1210012001112 is an abundant number, since it is smaller than the sum of its proper divisors (2079666478248).

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

1210012001112 is a wasteful number, since it uses less digits than its factorization.

1210012001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189313 (or 189309 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1210012001112 its reverse (2111002100121), we get a palindrome (3321014101233).

Subtracting 1210012001112 from its reverse (2111002100121), we obtain a palindrome (900990099009).

The spelling of 1210012001112 in words is "one trillion, two hundred ten billion, twelve million, one thousand, one hundred twelve".