210122201012201 has 4 divisors (see below), whose sum is σ = 210745709027412. Its totient is φ = 209498692996992.

The previous prime is 210122201012189. The next prime is 210122201012233. The reversal of 210122201012201 is 102210102221012.

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 90947883955600 + 119174317056601 = 9536660^2 + 10916699^2 .

It is a cyclic number.

It is not a de Polignac number, because 210122201012201 - 2³⁰ = 210121127270377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210122201012201.

It is not an unprimeable number, because it can be changed into a prime (210122201012281) 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, 311754007100 + ... + 311754007773.

It is an arithmetic number, because the mean of its divisors is an integer number (52686427256853).

Almost surely, 2^{210122201012201} is an apocalyptic number.

It is an amenable number.

210122201012201 is a deficient number, since it is larger than the sum of its proper divisors (623508015211).

210122201012201 is an equidigital number, since it uses as much as digits as its factorization.

210122201012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623508015210.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210122201012201 its reverse (102210102221012), we get a palindrome (312332303233213).

The spelling of 210122201012201 in words is "two hundred ten trillion, one hundred twenty-two billion, two hundred one million, twelve thousand, two hundred one".