1111201201 has 6 divisors (see below), whose sum is σ = 1221403106. Its totient is φ = 1010182800.

The previous prime is 1111201181. The next prime is 1111201237. The reversal of 1111201201 is 1021021111.

It can be written as a sum of positive squares in only one way, i.e., 617472801 + 493728400 = 24849^2 + 22220^2 .

It is not a de Polignac number, because 1111201201 - 2¹¹ = 1111199153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111231201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4591620 + ... + 4591861.

Almost surely, 2^1111201201 is an apocalyptic number.

1111201201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111201201 is a deficient number, since it is larger than the sum of its proper divisors (110201905).

1111201201 is an equidigital number, since it uses as much as digits as its factorization.

1111201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9183503 (or 9183492 counting only the distinct ones).

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

The square root of 1111201201 is about 33334.6846542756. The cubic root of 1111201201 is about 1035.7721609179.

Adding to 1111201201 its reverse (1021021111), we get a palindrome (2132222312).

The spelling of 1111201201 in words is "one billion, one hundred eleven million, two hundred one thousand, two hundred one".