1222123132 has 12 divisors (see below), whose sum is σ = 2264522400. Its totient is φ = 575116736.

The previous prime is 1222123117. The next prime is 1222123139. The reversal of 1222123132 is 2313212221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222123139) 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, 8986132 + ... + 8986267.

It is an arithmetic number, because the mean of its divisors is an integer number (188710200).

Almost surely, 2^1222123132 is an apocalyptic number.

It is an amenable number.

1222123132 is a deficient number, since it is larger than the sum of its proper divisors (1042399268).

1222123132 is a wasteful number, since it uses less digits than its factorization.

1222123132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17972420 (or 17972418 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 1222123132 is about 34958.8777279821. The cubic root of 1222123132 is about 1069.1492151005.

Adding to 1222123132 its reverse (2313212221), we get a palindrome (3535335353).

It can be divided in two parts, 12221 and 23132, that added together give a palindrome (35353).

The spelling of 1222123132 in words is "one billion, two hundred twenty-two million, one hundred twenty-three thousand, one hundred thirty-two".