210120002201 has 4 divisors (see below), whose sum is σ = 210121336932. Its totient is φ = 210118667472.

The previous prime is 210120002117. The next prime is 210120002207. The reversal of 210120002201 is 102200021012.

It is a happy number.

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 121330305625 + 88789696576 = 348325^2 + 297976^2 .

It is a cyclic number.

It is not a de Polignac number, because 210120002201 - 2¹⁰ = 210120001177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210120002207) 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, 393866 + ... + 758531.

It is an arithmetic number, because the mean of its divisors is an integer number (52530334233).

Almost surely, 2^210120002201 is an apocalyptic number.

It is an amenable number.

210120002201 is a deficient number, since it is larger than the sum of its proper divisors (1334731).

210120002201 is a wasteful number, since it uses less digits than its factorization.

210120002201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334730.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 210120002201 its reverse (102200021012), we get a palindrome (312320023213).

The spelling of 210120002201 in words is "two hundred ten billion, one hundred twenty million, two thousand, two hundred one".