210120311201 has 4 divisors (see below), whose sum is σ = 210644302404. Its totient is φ = 209596320000.

The previous prime is 210120311161. The next prime is 210120311209. The reversal of 210120311201 is 102113021012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97678126225 + 112442184976 = 312535^2 + 335324^2 .

It is a cyclic number.

It is not a de Polignac number, because 210120311201 - 2²² = 210116116897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210120311209) 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, 261995000 + ... + 261995801.

It is an arithmetic number, because the mean of its divisors is an integer number (52661075601).

Almost surely, 2^210120311201 is an apocalyptic number.

It is an amenable number.

210120311201 is a deficient number, since it is larger than the sum of its proper divisors (523991203).

210120311201 is an equidigital number, since it uses as much as digits as its factorization.

210120311201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523991202.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 210120311201 its reverse (102113021012), we get a palindrome (312233332213).

The spelling of 210120311201 in words is "two hundred ten billion, one hundred twenty million, three hundred eleven thousand, two hundred one".