1223123221302 has 32 divisors (see below), whose sum is σ = 2457137825280. Its totient is φ = 405892813920.

The previous prime is 1223123221261. The next prime is 1223123221319. The reversal of 1223123221302 is 2031223213221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19951477 + ... + 20012687.

It is an arithmetic number, because the mean of its divisors is an integer number (76785557040).

Almost surely, 2^{1223123221302} is an apocalyptic number.

1223123221302 is an abundant number, since it is smaller than the sum of its proper divisors (1234014603978).

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

1223123221302 is a wasteful number, since it uses less digits than its factorization.

1223123221302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75988.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1223123221302 its reverse (2031223213221), we get a palindrome (3254346434523).

The spelling of 1223123221302 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-three million, two hundred twenty-one thousand, three hundred two".