1012121212112 has 20 divisors (see below), whose sum is σ = 1969778509440. Its totient is φ = 503791274208.

The previous prime is 1012121212111. The next prime is 1012121212171. The reversal of 1012121212112 is 2112121212101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012121212111) 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 3 ways as a sum of consecutive naturals, for example, 141829562 + ... + 141836697.

It is an arithmetic number, because the mean of its divisors is an integer number (98488925472).

Almost surely, 2^{1012121212112} is an apocalyptic number.

It is an amenable number.

1012121212112 is a deficient number, since it is larger than the sum of its proper divisors (957657297328).

1012121212112 is a wasteful number, since it uses less digits than its factorization.

1012121212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283666490 (or 283666484 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1012121212112 its reverse (2112121212101), we get a palindrome (3124242424213).

The spelling of 1012121212112 in words is "one trillion, twelve billion, one hundred twenty-one million, two hundred twelve thousand, one hundred twelve".