210110100020 has 96 divisors (see below), whose sum is σ = 474871735296. Its totient is φ = 77899712000.

The previous prime is 210110099989. The next prime is 210110100029. The reversal of 210110100020 is 20001011012.

It is a junction number, because it is equal to n+sod(n) for n = 210110099980 and 210110100007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210110100029) 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, 2135510 + ... + 2231730.

It is an arithmetic number, because the mean of its divisors is an integer number (4946580576).

Almost surely, 2^210110100020 is an apocalyptic number.

210110100020 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 210110100020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237435867648).

210110100020 is an abundant number, since it is smaller than the sum of its proper divisors (264761635276).

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

210110100020 is a wasteful number, since it uses less digits than its factorization.

210110100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96401 (or 96399 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 210110100020 its reverse (20001011012), we get a palindrome (230111111032).

The spelling of 210110100020 in words is "two hundred ten billion, one hundred ten million, one hundred thousand, twenty".