210120122001 has 8 divisors (see below), whose sum is σ = 280169379360. Its totient is φ = 140075472992.

The previous prime is 210120121997. The next prime is 210120122027. The reversal of 210120122001 is 100221021012.

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 210120122001 - 2² = 210120121997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210120126001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044255 + ... + 1229108.

It is an arithmetic number, because the mean of its divisors is an integer number (35021172420).

Almost surely, 2^210120122001 is an apocalyptic number.

It is an amenable number.

210120122001 is a deficient number, since it is larger than the sum of its proper divisors (70049257359).

210120122001 is a wasteful number, since it uses less digits than its factorization.

210120122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304175.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 210120122001 its reverse (100221021012), we get a palindrome (310341143013).

The spelling of 210120122001 in words is "two hundred ten billion, one hundred twenty million, one hundred twenty-two thousand, one".