1012111122012 has 12 divisors (see below), whose sum is σ = 2361592618056. Its totient is φ = 337370374000.

The previous prime is 1012111122007. The next prime is 1012111122053. The reversal of 1012111122012 is 2102211112101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1012111121982 and 1012111122000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42171296739 + ... + 42171296762.

It is an arithmetic number, because the mean of its divisors is an integer number (196799384838).

Almost surely, 2^{1012111122012} is an apocalyptic number.

1012111122012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012111122012 is an abundant number, since it is smaller than the sum of its proper divisors (1349481496044).

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

1012111122012 is a wasteful number, since it uses less digits than its factorization.

1012111122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84342593508 (or 84342593506 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1012111122012 its reverse (2102211112101), we get a palindrome (3114322234113).

The spelling of 1012111122012 in words is "one trillion, twelve billion, one hundred eleven million, one hundred twenty-two thousand, twelve".