1223233111012 has 24 divisors (see below), whose sum is σ = 2338284316032. Its totient is φ = 555295740000.

The previous prime is 1223233110997. The next prime is 1223233111019. The reversal of 1223233111012 is 2101113323221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1223233111019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17948364 + ... + 18016387.

It is an arithmetic number, because the mean of its divisors is an integer number (97428513168).

Almost surely, 2^{1223233111012} is an apocalyptic number.

It is an amenable number.

1223233111012 is a deficient number, since it is larger than the sum of its proper divisors (1115051205020).

1223233111012 is a wasteful number, since it uses less digits than its factorization.

1223233111012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35965539 (or 35965537 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1223233111012 its reverse (2101113323221), we get a palindrome (3324346434233).

The spelling of 1223233111012 in words is "one trillion, two hundred twenty-three billion, two hundred thirty-three million, one hundred eleven thousand, twelve".