1123222155 has 16 divisors (see below), whose sum is σ = 1960533504. Its totient is φ = 544592480.

The previous prime is 1123222141. The next prime is 1123222169. The reversal of 1123222155 is 5512223211.

It is an interprime number because it is at equal distance from previous prime (1123222141) and next prime (1123222169).

It is not a de Polignac number, because 1123222155 - 2⁵ = 1123222123 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3403539 + ... + 3403868.

It is an arithmetic number, because the mean of its divisors is an integer number (122533344).

Almost surely, 2^1123222155 is an apocalyptic number.

1123222155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1123222155 is a deficient number, since it is larger than the sum of its proper divisors (837311349).

1123222155 is a wasteful number, since it uses less digits than its factorization.

1123222155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6807426.

The product of its digits is 1200, while the sum is 24.

The square root of 1123222155 is about 33514.5066351871. The cubic root of 1123222155 is about 1039.4937609537.

Adding to 1123222155 its reverse (5512223211), we get a palindrome (6635445366).

The spelling of 1123222155 in words is "one billion, one hundred twenty-three million, two hundred twenty-two thousand, one hundred fifty-five".