1111224121 has 8 divisors (see below), whose sum is σ = 1274460224. Its totient is φ = 949110480.

The previous prime is 1111224097. The next prime is 1111224131. The reversal of 1111224121 is 1214221111.

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 1111224121 - 2⁵ = 1111224089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111224095 and 1111224104.

It is not an unprimeable number, because it can be changed into a prime (1111224131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278490 + ... + 282451.

It is an arithmetic number, because the mean of its divisors is an integer number (159307528).

Almost surely, 2^1111224121 is an apocalyptic number.

It is an amenable number.

1111224121 is a deficient number, since it is larger than the sum of its proper divisors (163236103).

1111224121 is an equidigital number, since it uses as much as digits as its factorization.

1111224121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561231.

The product of its digits is 32, while the sum is 16.

The square root of 1111224121 is about 33335.0284385659. The cubic root of 1111224121 is about 1035.7792822609.

Adding to 1111224121 its reverse (1214221111), we get a palindrome (2325445232).

The spelling of 1111224121 in words is "one billion, one hundred eleven million, two hundred twenty-four thousand, one hundred twenty-one".