1121111201 has 8 divisors (see below), whose sum is σ = 1300393920. Its totient is φ = 946609488.

The previous prime is 1121111161. The next prime is 1121111209. The reversal of 1121111201 is 1021111211.

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

It is a cyclic number.

It is not a de Polignac number, because 1121111201 - 2²² = 1116916897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121111209) 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, 1194746 + ... + 1195683.

It is an arithmetic number, because the mean of its divisors is an integer number (162549240).

Almost surely, 2^1121111201 is an apocalyptic number.

It is an amenable number.

1121111201 is a deficient number, since it is larger than the sum of its proper divisors (179282719).

1121111201 is an equidigital number, since it uses as much as digits as its factorization.

1121111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2390503.

The product of its (nonzero) digits is 4, while the sum is 11.

The square root of 1121111201 is about 33482.9986859003. The cubic root of 1121111201 is about 1038.8421535546.

Adding to 1121111201 its reverse (1021111211), we get a palindrome (2142222412).

The spelling of 1121111201 in words is "one billion, one hundred twenty-one million, one hundred eleven thousand, two hundred one".