1200201201 has 12 divisors (see below), whose sum is σ = 1738352512. Its totient is φ = 797951736.

The previous prime is 1200201193. The next prime is 1200201209. The reversal of 1200201201 is 1021020021.

It is an interprime number because it is at equal distance from previous prime (1200201193) and next prime (1200201209).

It is not a de Polignac number, because 1200201201 - 2³ = 1200201193 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200201209) 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 11 ways as a sum of consecutive naturals, for example, 178381 + ... + 184986.

Almost surely, 2^1200201201 is an apocalyptic number.

It is an amenable number.

1200201201 is a deficient number, since it is larger than the sum of its proper divisors (538151311).

1200201201 is a wasteful number, since it uses less digits than its factorization.

1200201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363740 (or 363737 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1200201201 is about 34643.9201159453. The cubic root of 1200201201 is about 1062.7179569655.

Adding to 1200201201 its reverse (1021020021), we get a palindrome (2221221222).

The spelling of 1200201201 in words is "one billion, two hundred million, two hundred one thousand, two hundred one".