210120122001001 has 4 divisors (see below), whose sum is σ = 210466283652352. Its totient is φ = 209773960349652.

The previous prime is 210120122000983. The next prime is 210120122001007. The reversal of 210120122001001 is 100100221021012.

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 210120122001001 - 2⁹ = 210120122000489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210120122001007) 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, 173080824765 + ... + 173080825978.

It is an arithmetic number, because the mean of its divisors is an integer number (52616570913088).

Almost surely, 2^{210120122001001} is an apocalyptic number.

It is an amenable number.

210120122001001 is a deficient number, since it is larger than the sum of its proper divisors (346161651351).

210120122001001 is an equidigital number, since it uses as much as digits as its factorization.

210120122001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346161651350.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210120122001001 its reverse (100100221021012), we get a palindrome (310220343022013).

The spelling of 210120122001001 in words is "two hundred ten trillion, one hundred twenty billion, one hundred twenty-two million, one thousand, one".