1323221222012 has 12 divisors (see below), whose sum is σ = 2323819603896. Its totient is φ = 659272763760.

The previous prime is 1323221221967. The next prime is 1323221222069. The reversal of 1323221222012 is 2102221223231.

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 3 ways as a sum of consecutive naturals, for example, 584460539 + ... + 584462802.

It is an arithmetic number, because the mean of its divisors is an integer number (193651633658).

Almost surely, 2^{1323221222012} is an apocalyptic number.

It is an amenable number.

1323221222012 is a deficient number, since it is larger than the sum of its proper divisors (1000598381884).

1323221222012 is a wasteful number, since it uses less digits than its factorization.

1323221222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168923628 (or 1168923626 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1323221222012 its reverse (2102221223231), we get a palindrome (3425442445243).

The spelling of 1323221222012 in words is "one trillion, three hundred twenty-three billion, two hundred twenty-one million, two hundred twenty-two thousand, twelve".