210201122120 has 128 divisors (see below), whose sum is σ = 525988391040. Its totient is φ = 74962851840.

The previous prime is 210201122111. The next prime is 210201122123. The reversal of 210201122120 is 21221102012.

210201122120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 210201122095 and 210201122104.

It is not an unprimeable number, because it can be changed into a prime (210201122123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4982234 + ... + 5024246.

It is an arithmetic number, because the mean of its divisors is an integer number (4109284305).

Almost surely, 2^210201122120 is an apocalyptic number.

210201122120 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 210201122120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262994195520).

210201122120 is an abundant number, since it is smaller than the sum of its proper divisors (315787268920).

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

210201122120 is a wasteful number, since it uses less digits than its factorization.

210201122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42255 (or 42251 counting only the distinct ones).

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

Adding to 210201122120 its reverse (21221102012), we get a palindrome (231422224132).

The spelling of 210201122120 in words is "two hundred ten billion, two hundred one million, one hundred twenty-two thousand, one hundred twenty".