200011001121 has 12 divisors (see below), whose sum is σ = 296713017172. Its totient is φ = 129736865376.

The previous prime is 200011001111. The next prime is 200011001159. The reversal of 200011001121 is 121100110002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 133155659025 + 66855342096 = 364905^2 + 258564^2 .

It is not a de Polignac number, because 200011001121 - 2²⁹ = 199474130209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200011001111) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300316486 + ... + 300317151.

Almost surely, 2^200011001121 is an apocalyptic number.

It is an amenable number.

200011001121 is a deficient number, since it is larger than the sum of its proper divisors (96702016051).

200011001121 is a wasteful number, since it uses less digits than its factorization.

200011001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600633680 (or 600633677 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 200011001121 its reverse (121100110002), we get a palindrome (321111111123).

The spelling of 200011001121 in words is "two hundred billion, eleven million, one thousand, one hundred twenty-one".