1200101201 has 12 divisors (see below), whose sum is σ = 1324731996. Its totient is φ = 1080746880.

The previous prime is 1200101191. The next prime is 1200101261. The reversal of 1200101201 is 1021010021.

It can be written as a sum of positive squares in 6 ways, for example, as 660747025 + 539354176 = 25705^2 + 23224^2 .

It is not a de Polignac number, because 1200101201 - 2²² = 1195906897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200101261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5606 + ... + 49311.

It is an arithmetic number, because the mean of its divisors is an integer number (110394333).

Almost surely, 2^1200101201 is an apocalyptic number.

It is an amenable number.

1200101201 is a deficient number, since it is larger than the sum of its proper divisors (124630795).

1200101201 is an equidigital number, since it uses as much as digits as its factorization.

1200101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55012 (or 54971 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1200101201 is about 34642.4768311967. The cubic root of 1200101201 is about 1062.6884411512.

Adding to 1200101201 its reverse (1021010021), we get a palindrome (2221111222).

The spelling of 1200101201 in words is "one billion, two hundred million, one hundred one thousand, two hundred one".