210100100100001 has 4 divisors (see below), whose sum is σ = 216877522683904. Its totient is φ = 203322677516100.

The previous prime is 210100100099969. The next prime is 210100100100131. The reversal of 210100100100001 is 100001001001012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210100100100001 - 2⁵ = 210100100099969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210100100140001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3388711291905 + ... + 3388711291966.

It is an arithmetic number, because the mean of its divisors is an integer number (54219380670976).

Almost surely, 2^{210100100100001} is an apocalyptic number.

It is an amenable number.

210100100100001 is a deficient number, since it is larger than the sum of its proper divisors (6777422583903).

210100100100001 is an equidigital number, since it uses as much as digits as its factorization.

210100100100001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6777422583902.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 210100100100001 its reverse (100001001001012), we get a palindrome (310101101101013).

The spelling of 210100100100001 in words is "two hundred ten trillion, one hundred billion, one hundred million, one hundred thousand, one".