1002010020012 has 54 divisors (see below), whose sum is σ = 2647771014252. Its totient is φ = 319481449584.

The previous prime is 1002010020007. The next prime is 1002010020013. The reversal of 1002010020012 is 2100200102001.

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 = 1002010019976 and 1002010020003.

It is not an unprimeable number, because it can be changed into a prime (1002010020013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26288718 + ... + 26326805.

Almost surely, 2^{1002010020012} is an apocalyptic number.

1002010020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1002010020012 is an abundant number, since it is smaller than the sum of its proper divisors (1645760994240).

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

1002010020012 is a wasteful number, since it uses less digits than its factorization.

1002010020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52615579 (or 52615551 counting only the distinct ones).

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

Adding to 1002010020012 its reverse (2100200102001), we get a palindrome (3102210122013).

The spelling of 1002010020012 in words is "one trillion, two billion, ten million, twenty thousand, twelve".