30220321302 has 24 divisors (see below), whose sum is σ = 66125657520. Its totient is φ = 9973702800.

The previous prime is 30220321297. The next prime is 30220321309. The reversal of 30220321302 is 20312302203.

It is a happy number.

It is a super-2 number, since 2×30220321302² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30220321309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8309602 + ... + 8313237.

It is an arithmetic number, because the mean of its divisors is an integer number (2755235730).

Almost surely, 2^30220321302 is an apocalyptic number.

30220321302 is an abundant number, since it is smaller than the sum of its proper divisors (35905336218).

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

30220321302 is a wasteful number, since it uses less digits than its factorization.

30220321302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16622948 (or 16622945 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30220321302 its reverse (20312302203), we get a palindrome (50532623505).

The spelling of 30220321302 in words is "thirty billion, two hundred twenty million, three hundred twenty-one thousand, three hundred two".