20020101102002 has 8 divisors (see below), whose sum is σ = 30339740845596. Its totient is φ = 9906854153472.

The previous prime is 20020101101999. The next prime is 20020101102007. The reversal of 20020101102002 is 20020110102002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20020085333161 + 15768841 = 4474381^2 + 3971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20020101102007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51598198523 + ... + 51598198910.

Almost surely, 2^{20020101102002} is an apocalyptic number.

20020101102002 is a deficient number, since it is larger than the sum of its proper divisors (10319639743594).

20020101102002 is a wasteful number, since it uses less digits than its factorization.

20020101102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103196397532.

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

Adding to 20020101102002 its reverse (20020110102002), we get a palindrome (40040211204004).

Subtracting 20020101102002 from its reverse (20020110102002), we obtain a square (9000000 = 3000²).

The spelling of 20020101102002 in words is "twenty trillion, twenty billion, one hundred one million, one hundred two thousand, two".