1223232012 has 36 divisors (see below), whose sum is σ = 3095151696. Its totient is φ = 407336160.

The previous prime is 1223231993. The next prime is 1223232029. The reversal of 1223232012 is 2102323221.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20638 + ... + 53594.

It is an arithmetic number, because the mean of its divisors is an integer number (85976436).

Almost surely, 2^1223232012 is an apocalyptic number.

1223232012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223232012 is an abundant number, since it is smaller than the sum of its proper divisors (1871919684).

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

1223232012 is a wasteful number, since it uses less digits than its factorization.

1223232012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33998 (or 33993 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1223232012 is about 34974.7339089235. The cubic root of 1223232012 is about 1069.4724776162.

Adding to 1223232012 its reverse (2102323221), we get a palindrome (3325555233).

It can be divided in two parts, 12232 and 32012, that added together give a palindrome (44244).

The spelling of 1223232012 in words is "one billion, two hundred twenty-three million, two hundred thirty-two thousand, twelve".