1201111201 has 8 divisors (see below), whose sum is σ = 1272816000. Its totient is φ = 1130255280.

The previous prime is 1201111141. The next prime is 1201111243. The reversal of 1201111201 is 1021111021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201111201 - 2⁹ = 1201110689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201111271) 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 7 ways as a sum of consecutive naturals, for example, 209305 + ... + 214966.

It is an arithmetic number, because the mean of its divisors is an integer number (159102000).

Almost surely, 2^1201111201 is an apocalyptic number.

It is an amenable number.

1201111201 is a deficient number, since it is larger than the sum of its proper divisors (71704799).

1201111201 is a wasteful number, since it uses less digits than its factorization.

1201111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424439.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 1201111201 is about 34657.0512450208. The cubic root of 1201111201 is about 1062.9864755631.

Adding to 1201111201 its reverse (1021111021), we get a palindrome (2222222222).

The spelling of 1201111201 in words is "one billion, two hundred one million, one hundred eleven thousand, two hundred one".