1002020011012 has 6 divisors (see below), whose sum is σ = 1753535019278. Its totient is φ = 501010005504.

The previous prime is 1002020010967. The next prime is 1002020011043. The reversal of 1002020011012 is 2101100202001.

It can be written as a sum of positive squares in only one way, i.e., 929188035136 + 72831975876 = 963944^2 + 269874^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1002020011012.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 125252501373 + ... + 125252501380.

Almost surely, 2^{1002020011012} is an apocalyptic number.

It is an amenable number.

1002020011012 is a deficient number, since it is larger than the sum of its proper divisors (751515008266).

1002020011012 is a wasteful number, since it uses less digits than its factorization.

1002020011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250505002757 (or 250505002755 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1002020011012 its reverse (2101100202001), we get a palindrome (3103120213013).

The spelling of 1002020011012 in words is "one trillion, two billion, twenty million, eleven thousand, twelve".