1110201121 has 4 divisors (see below), whose sum is σ = 1111767700. Its totient is φ = 1108634544.

The previous prime is 1110201101. The next prime is 1110201143. The reversal of 1110201121 is 1211020111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1211020111 = 7 ⋅173002873.

It can be written as a sum of positive squares in 2 ways, for example, as 415140625 + 695060496 = 20375^2 + 26364^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110201121 - 2¹¹ = 1110199073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110201098 and 1110201107.

It is not an unprimeable number, because it can be changed into a prime (1110201101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 782226 + ... + 783643.

It is an arithmetic number, because the mean of its divisors is an integer number (277941925).

Almost surely, 2^1110201121 is an apocalyptic number.

It is an amenable number.

1110201121 is a deficient number, since it is larger than the sum of its proper divisors (1566579).

1110201121 is an equidigital number, since it uses as much as digits as its factorization.

1110201121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566578.

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

The square root of 1110201121 is about 33319.6806857449. The cubic root of 1110201121 is about 1035.4613363395.

Adding to 1110201121 its reverse (1211020111), we get a palindrome (2321221232).

The spelling of 1110201121 in words is "one billion, one hundred ten million, two hundred one thousand, one hundred twenty-one".