1223223112 has 16 divisors (see below), whose sum is σ = 2295503100. Its totient is φ = 611088960.

The previous prime is 1223223101. The next prime is 1223223121. The reversal of 1223223112 is 2113223221.

It can be written as a sum of positive squares in 2 ways, for example, as 1223180676 + 42436 = 34974^2 + 206^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1223223112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55287 + ... + 74182.

Almost surely, 2^1223223112 is an apocalyptic number.

It is an amenable number.

1223223112 is a deficient number, since it is larger than the sum of its proper divisors (1072279988).

1223223112 is a wasteful number, since it uses less digits than its factorization.

1223223112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130656 (or 130652 counting only the distinct ones).

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

The square root of 1223223112 is about 34974.6066739856. The cubic root of 1223223112 is about 1069.4698838515.

Adding to 1223223112 its reverse (2113223221), we get a palindrome (3336446333).

It can be divided in two parts, 12232 and 23112, that added together give a square (35344 = 188²).

The spelling of 1223223112 in words is "one billion, two hundred twenty-three million, two hundred twenty-three thousand, one hundred twelve".