1201100201 has 24 divisors (see below), whose sum is σ = 1493856000. Its totient is φ = 959478912.

The previous prime is 1201100189. The next prime is 1201100237. The reversal of 1201100201 is 1020011021.

It is not a de Polignac number, because 1201100201 - 2⁶ = 1201100137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201100281) 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 23 ways as a sum of consecutive naturals, for example, 78800 + ... + 92798.

It is an arithmetic number, because the mean of its divisors is an integer number (62244000).

Almost surely, 2^1201100201 is an apocalyptic number.

It is an amenable number.

1201100201 is a deficient number, since it is larger than the sum of its proper divisors (292755799).

1201100201 is a wasteful number, since it uses less digits than its factorization.

1201100201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14133 (or 14126 counting only the distinct ones).

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

The square root of 1201100201 is about 34656.8925467936. The cubic root of 1201100201 is about 1062.9832305439.

Adding to 1201100201 its reverse (1020011021), we get a palindrome (2221111222).

The spelling of 1201100201 in words is "one billion, two hundred one million, one hundred thousand, two hundred one".