2001201201 has 32 divisors (see below), whose sum is σ = 3138960000. Its totient is φ = 1256554944.

The previous prime is 2001201199. The next prime is 2001201211. The reversal of 2001201201 is 1021021002.

It is not a de Polignac number, because 2001201201 - 2¹ = 2001201199 is a prime.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2001201211) 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 31 ways as a sum of consecutive naturals, for example, 77475 + ... + 100023.

It is an arithmetic number, because the mean of its divisors is an integer number (98092500).

Almost surely, 2^2001201201 is an apocalyptic number.

It is an amenable number.

2001201201 is a deficient number, since it is larger than the sum of its proper divisors (1137758799).

2001201201 is a wasteful number, since it uses less digits than its factorization.

2001201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22750 (or 22744 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 2001201201 is about 44734.7873695629. The cubic root of 2001201201 is about 1260.1732358181.

Adding to 2001201201 its reverse (1021021002), we get a palindrome (3022222203).

The spelling of 2001201201 in words is "two billion, one million, two hundred one thousand, two hundred one".