201200000001 has 96 divisors (see below), whose sum is σ = 382563191808. Its totient is φ = 92284536960.

The previous prime is 201199999963. The next prime is 201200000003. The reversal of 201200000001 is 100000002102.

It is a happy number.

It is not a de Polignac number, because 201200000001 - 2³¹ = 199052516353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201200000003) 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 95 ways as a sum of consecutive naturals, for example, 275410 + ... + 691556.

It is an arithmetic number, because the mean of its divisors is an integer number (3985033248).

Almost surely, 2^201200000001 is an apocalyptic number.

201200000001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

201200000001 is a deficient number, since it is larger than the sum of its proper divisors (181363191807).

201200000001 is a wasteful number, since it uses less digits than its factorization.

201200000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416211 (or 416204 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 201200000001 its reverse (100000002102), we get a palindrome (301200002103).

It can be divided in two parts, 20 and 1200000001, that added together give a palindrome (1200000021).

The spelling of 201200000001 in words is "two hundred one billion, two hundred million, one", and thus it is an aban number.