1123512122 has 16 divisors (see below), whose sum is σ = 1696593600. Its totient is φ = 557991840.

The previous prime is 1123512101. The next prime is 1123512139. The reversal of 1123512122 is 2212153211.

It is a junction number, because it is equal to n+sod(n) for n = 1123512094 and 1123512103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237779 + ... + 242457.

It is an arithmetic number, because the mean of its divisors is an integer number (106037100).

Almost surely, 2^1123512122 is an apocalyptic number.

1123512122 is a deficient number, since it is larger than the sum of its proper divisors (573081478).

1123512122 is a wasteful number, since it uses less digits than its factorization.

1123512122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5461.

The product of its digits is 240, while the sum is 20.

The square root of 1123512122 is about 33518.8323483978. The cubic root of 1123512122 is about 1039.5832039168.

Adding to 1123512122 its reverse (2212153211), we get a palindrome (3335665333).

The spelling of 1123512122 in words is "one billion, one hundred twenty-three million, five hundred twelve thousand, one hundred twenty-two".