200210023121 has 4 divisors (see below), whose sum is σ = 200644318644. Its totient is φ = 199775727600.

The previous prime is 200210023093. The next prime is 200210023201. The reversal of 200210023121 is 121320012002.

It is a happy number.

200210023121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 41407773121 + 158802250000 = 203489^2 + 398500^2 .

It is a cyclic number.

It is not a de Polignac number, because 200210023121 - 2²² = 200205828817 is a prime.

It is a super-2 number, since 2×200210023121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200210023096 and 200210023105.

It is not an unprimeable number, because it can be changed into a prime (200210223121) 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 3 ways as a sum of consecutive naturals, for example, 217147070 + ... + 217147991.

It is an arithmetic number, because the mean of its divisors is an integer number (50161079661).

Almost surely, 2^200210023121 is an apocalyptic number.

It is an amenable number.

200210023121 is a deficient number, since it is larger than the sum of its proper divisors (434295523).

200210023121 is an equidigital number, since it uses as much as digits as its factorization.

200210023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434295522.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 200210023121 its reverse (121320012002), we get a palindrome (321530035123).

The spelling of 200210023121 in words is "two hundred billion, two hundred ten million, twenty-three thousand, one hundred twenty-one".