1021001120012 has 36 divisors (see below), whose sum is σ = 1871976115800. Its totient is φ = 487216891392.

The previous prime is 1021001119991. The next prime is 1021001120023. The reversal of 1021001120012 is 2100211001201.

1021001120012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1021001119975 and 1021001120002.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 412763 + ... + 1487405.

It is an arithmetic number, because the mean of its divisors is an integer number (51999336550).

Almost surely, 2^{1021001120012} is an apocalyptic number.

It is an amenable number.

1021001120012 is a deficient number, since it is larger than the sum of its proper divisors (850974995788).

1021001120012 is a wasteful number, since it uses less digits than its factorization.

1021001120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075142 (or 1075117 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1021001120012 its reverse (2100211001201), we get a palindrome (3121212121213).

The spelling of 1021001120012 in words is "one trillion, twenty-one billion, one million, one hundred twenty thousand, twelve".