1121122118 has 8 divisors (see below), whose sum is σ = 1686007440. Its totient is φ = 559119640.

The previous prime is 1121122117. The next prime is 1121122129. The reversal of 1121122118 is 8112211211.

It is a happy number.

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

It is a super-3 number, since 3×1121122118³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121122118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121122117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719738 + ... + 721293.

It is an arithmetic number, because the mean of its divisors is an integer number (210750930).

Almost surely, 2^1121122118 is an apocalyptic number.

1121122118 is a deficient number, since it is larger than the sum of its proper divisors (564885322).

1121122118 is a wasteful number, since it uses less digits than its factorization.

1121122118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441422.

The product of its digits is 64, while the sum is 20.

The square root of 1121122118 is about 33483.1617085364. The cubic root of 1121122118 is about 1038.8455255077.

Adding to 1121122118 its reverse (8112211211), we get a palindrome (9233333329).

The spelling of 1121122118 in words is "one billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred eighteen".