10002120201020 has 24 divisors (see below), whose sum is σ = 21004719336384. Its totient is φ = 4000797239616.

The previous prime is 10002120201001. The next prime is 10002120201041. The reversal of 10002120201020 is 2010202120001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10002120200992 and 10002120201010.

It is a congruent number.

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, 1543844 + ... + 4731563.

It is an arithmetic number, because the mean of its divisors is an integer number (875196639016).

Almost surely, 2^{10002120201020} is an apocalyptic number.

10002120201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10002120201020 is an abundant number, since it is smaller than the sum of its proper divisors (11002599135364).

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

10002120201020 is a wasteful number, since it uses less digits than its factorization.

10002120201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6355109 (or 6355107 counting only the distinct ones).

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

Adding to 10002120201020 its reverse (2010202120001), we get a palindrome (12012322321021).

The spelling of 10002120201020 in words is "ten trillion, two billion, one hundred twenty million, two hundred one thousand, twenty".