210011021000120 has 128 divisors (see below), whose sum is σ = 492502005388800. Its totient is φ = 80506296576000.

The previous prime is 210011021000111. The next prime is 210011021000161. The reversal of 210011021000120 is 21000120110012.

It is a congruent number.

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, 256530482 + ... + 257347838.

It is an arithmetic number, because the mean of its divisors is an integer number (3847671917100).

Almost surely, 2^{210011021000120} is an apocalyptic number.

210011021000120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210011021000120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246251002694400).

210011021000120 is an abundant number, since it is smaller than the sum of its proper divisors (282490984388680).

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

210011021000120 is a wasteful number, since it uses less digits than its factorization.

210011021000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819409 (or 819405 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 210011021000120 its reverse (21000120110012), we get a palindrome (231011141110132).

The spelling of 210011021000120 in words is "two hundred ten trillion, eleven billion, twenty-one million, one hundred twenty", and thus it is an aban number.