1200001110201 has 20 divisors (see below), whose sum is σ = 1836316067124. Its totient is φ = 780488524800.

The previous prime is 1200001110179. The next prime is 1200001110233. The reversal of 1200001110201 is 1020111000021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 55580420025 + 1144420690176 = 235755^2 + 1069776^2 .

It is not a de Polignac number, because 1200001110201 - 2⁷ = 1200001110073 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (1200001110281) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 180665320 + ... + 180671961.

Almost surely, 2^{1200001110201} is an apocalyptic number.

It is an amenable number.

1200001110201 is a deficient number, since it is larger than the sum of its proper divisors (636314956923).

1200001110201 is an equidigital number, since it uses as much as digits as its factorization.

1200001110201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361337334 (or 361337325 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1200001110201 its reverse (1020111000021), we get a palindrome (2220112110222).

The spelling of 1200001110201 in words is "one trillion, two hundred billion, one million, one hundred ten thousand, two hundred one".