1110012121 has 4 divisors (see below), whose sum is σ = 1110088192. Its totient is φ = 1109936052.

The previous prime is 1110012089. The next prime is 1110012139. The reversal of 1110012121 is 1212100111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1110012121 - 2⁵ = 1110012089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1110012098 and 1110012107.

It is not an unprimeable number, because it can be changed into a prime (1110018121) 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 3 ways as a sum of consecutive naturals, for example, 8505 + ... + 47878.

It is an arithmetic number, because the mean of its divisors is an integer number (277522048).

Almost surely, 2^1110012121 is an apocalyptic number.

It is an amenable number.

1110012121 is a deficient number, since it is larger than the sum of its proper divisors (76071).

1110012121 is an equidigital number, since it uses as much as digits as its factorization.

1110012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76070.

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

The square root of 1110012121 is about 33316.8444033945. The cubic root of 1110012121 is about 1035.4025742242.

Adding to 1110012121 its reverse (1212100111), we get a palindrome (2322112232).

The spelling of 1110012121 in words is "one billion, one hundred ten million, twelve thousand, one hundred twenty-one".