1021112012012 has 24 divisors (see below), whose sum is σ = 1805038061904. Its totient is φ = 505394214912.

The previous prime is 1021112012009. The next prime is 1021112012017. The reversal of 1021112012012 is 2102102111201.

It is not an unprimeable number, because it can be changed into a prime (1021112012017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364613 + ... + 1474844.

It is an arithmetic number, because the mean of its divisors is an integer number (75209919246).

Almost surely, 2^{1021112012012} is an apocalyptic number.

It is an amenable number.

1021112012012 is a deficient number, since it is larger than the sum of its proper divisors (783926049892).

1021112012012 is a wasteful number, since it uses less digits than its factorization.

1021112012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840865 (or 1840863 counting only the distinct ones).

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

Adding to 1021112012012 its reverse (2102102111201), we get a palindrome (3123214123213).

The spelling of 1021112012012 in words is "one trillion, twenty-one billion, one hundred twelve million, twelve thousand, twelve".