210001012100000 has 144 divisors (see below), whose sum is σ = 563745047195232. Its totient is φ = 76364004000000.

The previous prime is 210001012099987. The next prime is 210001012100017. The reversal of 210001012100000 is 1210100012.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94355006 + ... + 96555005.

It is an arithmetic number, because the mean of its divisors is an integer number (3914896161078).

Almost surely, 2^{210001012100000} is an apocalyptic number.

210001012100000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210001012100000 is an abundant number, since it is smaller than the sum of its proper divisors (353744035095232).

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

210001012100000 is an equidigital number, since it uses as much as digits as its factorization.

210001012100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190910057 (or 190910029 counting only the distinct ones).

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

Adding to 210001012100000 its reverse (1210100012), we get a palindrome (210002222200012).

It can be divided in two parts, 210001012 and 100000, that added together give a palindrome (210101012).

The spelling of 210001012100000 in words is "two hundred ten trillion, one billion, twelve million, one hundred thousand".