200001121 has 8 divisors (see below), whose sum is σ = 204480000. Its totient is φ = 195531648.

The previous prime is 200001103. The next prime is 200001143. The reversal of 200001121 is 121100002.

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

It is a cyclic number.

It is not a de Polignac number, because 200001121 - 2²³ = 191612513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200004121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57000 + ... + 60406.

It is an arithmetic number, because the mean of its divisors is an integer number (25560000).

Almost surely, 2^200001121 is an apocalyptic number.

It is an amenable number.

200001121 is a deficient number, since it is larger than the sum of its proper divisors (4478879).

200001121 is a wasteful number, since it uses less digits than its factorization.

200001121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 200001121 is about 14142.1752570105. The cubic root of 200001121 is about 584.8046402485.

Adding to 200001121 its reverse (121100002), we get a palindrome (321101123).

The spelling of 200001121 in words is "two hundred million, one thousand, one hundred twenty-one".