201020021210120 has 128 divisors (see below), whose sum is σ = 517176459360000. Its totient is φ = 68885448855552.

The previous prime is 201020021210083. The next prime is 201020021210171. The reversal of 201020021210120 is 21012120020102.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 201020021210095 and 201020021210104.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4672797971 + ... + 4672840989.

It is an arithmetic number, because the mean of its divisors is an integer number (4040441088750).

Almost surely, 2^{201020021210120} is an apocalyptic number.

201020021210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201020021210120 is an abundant number, since it is smaller than the sum of its proper divisors (316156438149880).

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

201020021210120 is a wasteful number, since it uses less digits than its factorization.

201020021210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51295 (or 51291 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201020021210120 its reverse (21012120020102), we get a palindrome (222032141230222).

The spelling of 201020021210120 in words is "two hundred one trillion, twenty billion, twenty-one million, two hundred ten thousand, one hundred twenty".