1002020000202 has 48 divisors (see below), whose sum is σ = 2338120112328. Its totient is φ = 308304161280.

The previous prime is 1002020000173. The next prime is 1002020000207. The reversal of 1002020000202 is 2020000202001.

1002020000202 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 can be written as a sum of positive squares in 4 ways, for example, as 642836736441 + 359183263761 = 801771^2 + 599319^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1002020000207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12061318 + ... + 12144110.

Almost surely, 2^{1002020000202} is an apocalyptic number.

1002020000202 is an abundant number, since it is smaller than the sum of its proper divisors (1336100112126).

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

1002020000202 is a wasteful number, since it uses less digits than its factorization.

1002020000202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134535 (or 134532 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 1002020000202 its reverse (2020000202001), we get a palindrome (3022020202203).

The spelling of 1002020000202 in words is "one trillion, two billion, twenty million, two hundred two", and thus it is an aban number.