201201001 has 8 divisors (see below), whose sum is σ = 213161760. Its totient is φ = 189254208.

The previous prime is 201200957. The next prime is 201201023. The reversal of 201201001 is 100102102.

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 201201001 - 2⁷ = 201200873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201201041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47950 + ... + 51976.

It is an arithmetic number, because the mean of its divisors is an integer number (26645220).

Almost surely, 2^201201001 is an apocalyptic number.

It is an amenable number.

201201001 is a deficient number, since it is larger than the sum of its proper divisors (11960759).

201201001 is a wasteful number, since it uses less digits than its factorization.

201201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983.

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

The square root of 201201001 is about 14184.5338661515. The cubic root of 201201001 is about 585.9717950525.

Adding to 201201001 its reverse (100102102), we get a palindrome (301303103).

It can be divided in two parts, 20 and 1201001, that added together give a palindrome (1201021).

The spelling of 201201001 in words is "two hundred one million, two hundred one thousand, one".