1020202001012 has 12 divisors (see below), whose sum is σ = 1788931368000. Its totient is φ = 509078753016.

The previous prime is 1020202000981. The next prime is 1020202001023. The reversal of 1020202001012 is 2101002020201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1020202000984 and 1020202001002.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 255559628 + ... + 255563619.

It is an arithmetic number, because the mean of its divisors is an integer number (149077614000).

Almost surely, 2^{1020202001012} is an apocalyptic number.

It is an amenable number.

1020202001012 is a deficient number, since it is larger than the sum of its proper divisors (768729366988).

1020202001012 is a wasteful number, since it uses less digits than its factorization.

1020202001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511123750 (or 511123748 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1020202001012 its reverse (2101002020201), we get a palindrome (3121204021213).

The spelling of 1020202001012 in words is "one trillion, twenty billion, two hundred two million, one thousand, twelve".