210110210100020 has 24 divisors (see below), whose sum is σ = 441232072339968. Its totient is φ = 84043963824800.

The previous prime is 210110210099953. The next prime is 210110210100023. The reversal of 210110210100020 is 20001012011012.

It is a junction number, because it is equal to n+sod(n) for n = 210110210099974 and 210110210100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210110210100023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7555505 + ... + 21847335.

It is an arithmetic number, because the mean of its divisors is an integer number (18384669680832).

Almost surely, 2^{210110210100020} is an apocalyptic number.

210110210100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210110210100020 is an abundant number, since it is smaller than the sum of its proper divisors (231121862239948).

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

210110210100020 is a wasteful number, since it uses less digits than its factorization.

210110210100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15026911 (or 15026909 counting only the distinct ones).

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

Adding to 210110210100020 its reverse (20001012011012), we get a palindrome (230111222111032).

The spelling of 210110210100020 in words is "two hundred ten trillion, one hundred ten billion, two hundred ten million, one hundred thousand, twenty".