1223020112 has 40 divisors (see below), whose sum is σ = 2398894080. Its totient is φ = 603987840.

The previous prime is 1223020039. The next prime is 1223020157. The reversal of 1223020112 is 2110203221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 667037 + ... + 668867.

It is an arithmetic number, because the mean of its divisors is an integer number (59972352).

Almost surely, 2^1223020112 is an apocalyptic number.

It is an amenable number.

1223020112 is a deficient number, since it is larger than the sum of its proper divisors (1175873968).

1223020112 is a wasteful number, since it uses less digits than its factorization.

1223020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331 (or 2325 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1223020112 is about 34971.7044480248. The cubic root of 1223020112 is about 1069.4107192845.

Adding to 1223020112 its reverse (2110203221), we get a palindrome (3333223333).

The spelling of 1223020112 in words is "one billion, two hundred twenty-three million, twenty thousand, one hundred twelve".