201002200121 has 8 divisors (see below), whose sum is σ = 207938325000. Its totient is φ = 194066409600.

The previous prime is 201002200081. The next prime is 201002200123. The reversal of 201002200121 is 121002200102.

It is a happy number.

201002200121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12085924096 + 188916276025 = 109936^2 + 434645^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201002200121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201002200123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2165771 + ... + 2256671.

It is an arithmetic number, because the mean of its divisors is an integer number (25992290625).

Almost surely, 2^201002200121 is an apocalyptic number.

It is an amenable number.

201002200121 is a deficient number, since it is larger than the sum of its proper divisors (6936124879).

201002200121 is an equidigital number, since it uses as much as digits as its factorization.

201002200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167179.

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

Adding to 201002200121 its reverse (121002200102), we get a palindrome (322004400223).

The spelling of 201002200121 in words is "two hundred one billion, two million, two hundred thousand, one hundred twenty-one".