210120100002001 has 8 divisors (see below), whose sum is σ = 244668148789824. Its totient is φ = 176704774125360.

The previous prime is 210120100001963. The next prime is 210120100002061. The reversal of 210120100002001 is 100200001021012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 210120100002001 - 2²⁷ = 210119965784273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210120100002061) 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, 283180727395 + ... + 283180728136.

It is an arithmetic number, because the mean of its divisors is an integer number (30583518598728).

Almost surely, 2^{210120100002001} is an apocalyptic number.

It is an amenable number.

210120100002001 is a deficient number, since it is larger than the sum of its proper divisors (34548048787823).

210120100002001 is an equidigital number, since it uses as much as digits as its factorization.

210120100002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566361455591.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 210120100002001 its reverse (100200001021012), we get a palindrome (310320101023013).

The spelling of 210120100002001 in words is "two hundred ten trillion, one hundred twenty billion, one hundred million, two thousand, one".