1123222135 has 64 divisors (see below), whose sum is σ = 1691154432. Its totient is φ = 699342336.

The previous prime is 1123222123. The next prime is 1123222141. The reversal of 1123222135 is 5312223211.

It is not a de Polignac number, because 1123222135 - 2²⁹ = 586351223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1280317 + ... + 1281193.

It is an arithmetic number, because the mean of its divisors is an integer number (26424288).

Almost surely, 2^1123222135 is an apocalyptic number.

1123222135 is a deficient number, since it is larger than the sum of its proper divisors (567932297).

1123222135 is a wasteful number, since it uses less digits than its factorization.

1123222135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992.

The product of its digits is 720, while the sum is 22.

The square root of 1123222135 is about 33514.5063368088. The cubic root of 1123222135 is about 1039.4937547840.

Adding to 1123222135 its reverse (5312223211), we get a palindrome (6435445346).

The spelling of 1123222135 in words is "one billion, one hundred twenty-three million, two hundred twenty-two thousand, one hundred thirty-five".