1121266115 has 4 divisors (see below), whose sum is σ = 1345519344. Its totient is φ = 897012888.

The previous prime is 1121266099. The next prime is 1121266147. The reversal of 1121266115 is 5116621211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121266115 - 2⁴ = 1121266099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112126607 + ... + 112126616.

It is an arithmetic number, because the mean of its divisors is an integer number (336379836).

Almost surely, 2^1121266115 is an apocalyptic number.

1121266115 is a deficient number, since it is larger than the sum of its proper divisors (224253229).

1121266115 is an equidigital number, since it uses as much as digits as its factorization.

1121266115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224253228.

The product of its digits is 720, while the sum is 26.

The square root of 1121266115 is about 33485.3119292624. The cubic root of 1121266115 is about 1038.8900000666.

Adding to 1121266115 its reverse (5116621211), we get a palindrome (6237887326).

The spelling of 1121266115 in words is "one billion, one hundred twenty-one million, two hundred sixty-six thousand, one hundred fifteen".