201002020011020 has 24 divisors (see below), whose sum is σ = 422480114057904. Its totient is φ = 80329213331136.

The previous prime is 201002020010989. The next prime is 201002020011047. The reversal of 201002020011020 is 20110020200102.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 201002020010992 and 201002020011010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4474644059 + ... + 4474688978.

It is an arithmetic number, because the mean of its divisors is an integer number (17603338085746).

Almost surely, 2^{201002020011020} is an apocalyptic number.

201002020011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201002020011020 is an abundant number, since it is smaller than the sum of its proper divisors (221478094046884).

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

201002020011020 is a wasteful number, since it uses less digits than its factorization.

201002020011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8949334169 (or 8949334167 counting only the distinct ones).

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

Adding to 201002020011020 its reverse (20110020200102), we get a palindrome (221112040211122).

The spelling of 201002020011020 in words is "two hundred one trillion, two billion, twenty million, eleven thousand, twenty".