201020102002120 has 32 divisors (see below), whose sum is σ = 452295945227520. Its totient is φ = 80407913561280.

The previous prime is 201020102002117. The next prime is 201020102002253. The reversal of 201020102002120 is 21200201020102.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 201020102002120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24057499 + ... + 31317781.

It is an arithmetic number, because the mean of its divisors is an integer number (14134248288360).

Almost surely, 2^{201020102002120} is an apocalyptic number.

201020102002120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201020102002120 is an abundant number, since it is smaller than the sum of its proper divisors (251275843225400).

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

201020102002120 is a wasteful number, since it uses less digits than its factorization.

201020102002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952485 (or 7952481 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 201020102002120 its reverse (21200201020102), we get a palindrome (222220303022222).

The spelling of 201020102002120 in words is "two hundred one trillion, twenty billion, one hundred two million, two thousand, one hundred twenty".