201206555201 has 4 divisors (see below), whose sum is σ = 201209279232. Its totient is φ = 201203831172.

The previous prime is 201206555197. The next prime is 201206555279. The reversal of 201206555201 is 102555602102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201206555201 - 2² = 201206555197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (201206552201) 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 3 ways as a sum of consecutive naturals, for example, 1248041 + ... + 1400006.

It is an arithmetic number, because the mean of its divisors is an integer number (50302319808).

Almost surely, 2^201206555201 is an apocalyptic number.

It is an amenable number.

201206555201 is a deficient number, since it is larger than the sum of its proper divisors (2724031).

201206555201 is an equidigital number, since it uses as much as digits as its factorization.

201206555201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724030.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 201206555201 in words is "two hundred one billion, two hundred six million, five hundred fifty-five thousand, two hundred one".