1012111012112 has 40 divisors (see below), whose sum is σ = 2028711326040. Its totient is φ = 488574786560.

The previous prime is 1012111012111. The next prime is 1012111012139. The reversal of 1012111012112 is 2112101112101.

It can be written as a sum of positive squares in 4 ways, for example, as 379106192656 + 633004819456 = 615716^2 + 795616^2 .

It is not an unprimeable number, because it can be changed into a prime (1012111012111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8534858 + ... + 8652630.

It is an arithmetic number, because the mean of its divisors is an integer number (50717783151).

Almost surely, 2^{1012111012112} is an apocalyptic number.

It is an amenable number.

1012111012112 is an abundant number, since it is smaller than the sum of its proper divisors (1016600313928).

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

1012111012112 is a wasteful number, since it uses less digits than its factorization.

1012111012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136331 (or 136325 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1012111012112 its reverse (2112101112101), we get a palindrome (3124212124213).

The spelling of 1012111012112 in words is "one trillion, twelve billion, one hundred eleven million, twelve thousand, one hundred twelve".