210120201001 has 16 divisors (see below), whose sum is σ = 217476403200. Its totient is φ = 202907718288.

The previous prime is 210120200989. The next prime is 210120201013. The reversal of 210120201001 is 100102021012.

It is an interprime number because it is at equal distance from previous prime (210120200989) and next prime (210120201013).

It is a cyclic number.

It is not a de Polignac number, because 210120201001 - 2⁹ = 210120200489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210120202001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1345096 + ... + 1493158.

It is an arithmetic number, because the mean of its divisors is an integer number (13592275200).

Almost surely, 2^210120201001 is an apocalyptic number.

It is an amenable number.

210120201001 is a deficient number, since it is larger than the sum of its proper divisors (7356202199).

210120201001 is a wasteful number, since it uses less digits than its factorization.

210120201001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148548.

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

Adding to 210120201001 its reverse (100102021012), we get a palindrome (310222222013).

The spelling of 210120201001 in words is "two hundred ten billion, one hundred twenty million, two hundred one thousand, one".