1021331020012 has 24 divisors (see below), whose sum is σ = 1821391318656. Its totient is φ = 500937086208.

The previous prime is 1021331019991. The next prime is 1021331020057. The reversal of 1021331020012 is 2100201331201.

1021331020012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700788 + ... + 1591780.

It is an arithmetic number, because the mean of its divisors is an integer number (75891304944).

Almost surely, 2^{1021331020012} is an apocalyptic number.

It is an amenable number.

1021331020012 is a deficient number, since it is larger than the sum of its proper divisors (800060298644).

1021331020012 is a wasteful number, since it uses less digits than its factorization.

1021331020012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896457 (or 896455 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1021331020012 its reverse (2100201331201), we get a palindrome (3121532351213).

The spelling of 1021331020012 in words is "one trillion, twenty-one billion, three hundred thirty-one million, twenty thousand, twelve".