1000002021012 has 144 divisors (see below), whose sum is σ = 2572108418880. Its totient is φ = 327548634624.

The previous prime is 1000002020999. The next prime is 1000002021059. The reversal of 1000002021012 is 2101202000001.

1000002021012 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1000002020985 and 1000002021003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 360100168 + ... + 360102944.

It is an arithmetic number, because the mean of its divisors is an integer number (17861864020).

Almost surely, 2^{1000002021012} is an apocalyptic number.

1000002021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000002021012 is an abundant number, since it is smaller than the sum of its proper divisors (1572106397868).

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

1000002021012 is a wasteful number, since it uses less digits than its factorization.

1000002021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3622 (or 3617 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 1000002021012 its reverse (2101202000001), we get a palindrome (3101204021013).

The spelling of 1000002021012 in words is "one trillion, two million, twenty-one thousand, twelve".