1223220302 has 16 divisors (see below), whose sum is σ = 1860872832. Its totient is φ = 602960760.

The previous prime is 1223220301. The next prime is 1223220311. The reversal of 1223220302 is 2030223221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223220301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73277 + ... + 88407.

It is an arithmetic number, because the mean of its divisors is an integer number (116304552).

Almost surely, 2^1223220302 is an apocalyptic number.

1223220302 is a deficient number, since it is larger than the sum of its proper divisors (637652530).

1223220302 is a wasteful number, since it uses less digits than its factorization.

1223220302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15703.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 1223220302 is about 34974.5665019597. The cubic root of 1223220302 is about 1069.4690649187.

Adding to 1223220302 its reverse (2030223221), we get a palindrome (3253443523).

The spelling of 1223220302 in words is "one billion, two hundred twenty-three million, two hundred twenty thousand, three hundred two".