1021002110012 has 12 divisors (see below), whose sum is σ = 1787029769616. Its totient is φ = 510422175840.

The previous prime is 1021002109993. The next prime is 1021002110017. The reversal of 1021002110012 is 2100112001201.

It is a junction number, because it is equal to n+sod(n) for n = 1021002109975 and 1021002110002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021002110017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19690664 + ... + 19742447.

It is an arithmetic number, because the mean of its divisors is an integer number (148919147468).

Almost surely, 2^{1021002110012} is an apocalyptic number.

It is an amenable number.

1021002110012 is a deficient number, since it is larger than the sum of its proper divisors (766027659604).

1021002110012 is a wasteful number, since it uses less digits than its factorization.

1021002110012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39439588 (or 39439586 counting only the distinct ones).

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

Adding to 1021002110012 its reverse (2100112001201), we get a palindrome (3121114111213).

The spelling of 1021002110012 in words is "one trillion, twenty-one billion, two million, one hundred ten thousand, twelve".