210002120121201 has 4 divisors (see below), whose sum is σ = 280002826828272. Its totient is φ = 140001413414132.

The previous prime is 210002120121181. The next prime is 210002120121221. The reversal of 210002120121201 is 102121021200012.

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 an interprime number because it is at equal distance from previous prime (210002120121181) and next prime (210002120121221).

It is a cyclic number.

It is not a de Polignac number, because 210002120121201 - 2⁵ = 210002120121169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210002120121221) 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, 35000353353531 + ... + 35000353353536.

It is an arithmetic number, because the mean of its divisors is an integer number (70000706707068).

Almost surely, 2^{210002120121201} is an apocalyptic number.

It is an amenable number.

210002120121201 is a deficient number, since it is larger than the sum of its proper divisors (70000706707071).

210002120121201 is an equidigital number, since it uses as much as digits as its factorization.

210002120121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70000706707070.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210002120121201 its reverse (102121021200012), we get a palindrome (312123141321213).

The spelling of 210002120121201 in words is "two hundred ten trillion, two billion, one hundred twenty million, one hundred twenty-one thousand, two hundred one".