1223022112 has 24 divisors (see below), whose sum is σ = 2593042956. Its totient is φ = 564471552.

The previous prime is 1223022107. The next prime is 1223022113. The reversal of 1223022112 is 2112203221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 934158096 + 288864016 = 30564^2 + 16996^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1223022113) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1469563 + ... + 1470394.

Almost surely, 2^1223022112 is an apocalyptic number.

It is an amenable number.

1223022112 is an abundant number, since it is smaller than the sum of its proper divisors (1370020844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223022112 is a wasteful number, since it uses less digits than its factorization.

1223022112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939980 (or 2939972 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1223022112 is about 34971.7330425588. The cubic root of 1223022112 is about 1069.4113022186.

Adding to 1223022112 its reverse (2112203221), we get a palindrome (3335225333).

The spelling of 1223022112 in words is "one billion, two hundred twenty-three million, twenty-two thousand, one hundred twelve".