1212101200112 has 80 divisors (see below), whose sum is σ = 2592470499840. Its totient is φ = 544397990400.

The previous prime is 1212101200073. The next prime is 1212101200147. The reversal of 1212101200112 is 2110021012121.

It is a congruent number.

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, 23956313 + ... + 24006855.

It is an arithmetic number, because the mean of its divisors is an integer number (32405881248).

Almost surely, 2^{1212101200112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212101200112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296235249920).

1212101200112 is an abundant number, since it is smaller than the sum of its proper divisors (1380369299728).

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

1212101200112 is a wasteful number, since it uses less digits than its factorization.

1212101200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52182 (or 52176 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1212101200112 its reverse (2110021012121), we get a palindrome (3322122212233).

The spelling of 1212101200112 in words is "one trillion, two hundred twelve billion, one hundred one million, two hundred thousand, one hundred twelve".