1112121012112 has 80 divisors (see below), whose sum is σ = 2476073574720. Its totient is φ = 478567526400.

The previous prime is 1112121012103. The next prime is 1112121012143. The reversal of 1112121012112 is 2112101212111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4675912 + ... + 4907992.

It is an arithmetic number, because the mean of its divisors is an integer number (30950919684).

Almost surely, 2^{1112121012112} 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 1112121012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238036787360).

1112121012112 is an abundant number, since it is smaller than the sum of its proper divisors (1363952562608).

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

1112121012112 is a wasteful number, since it uses less digits than its factorization.

1112121012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233552 (or 233546 counting only the distinct ones).

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

Adding to 1112121012112 its reverse (2112101212111), we get a palindrome (3224222224223).

The spelling of 1112121012112 in words is "one trillion, one hundred twelve billion, one hundred twenty-one million, twelve thousand, one hundred twelve".