303221230020 has 72 divisors (see below), whose sum is σ = 959761123776. Its totient is φ = 77343385152.

The previous prime is 303221230019. The next prime is 303221230027. The reversal of 303221230020 is 20032122303.

It is a happy number.

303221230020 is a `hidden beast` number, since 30 + 322 + 12 + 300 + 2 + 0 = 666.

It is a super-2 number, since 2×303221230020² (a number of 24 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 303221229975 and 303221230002.

It is not an unprimeable number, because it can be changed into a prime (303221230027) 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 23 ways as a sum of consecutive naturals, for example, 36616782 + ... + 36625061.

It is an arithmetic number, because the mean of its divisors is an integer number (13330015608).

Almost surely, 2^303221230020 is an apocalyptic number.

303221230020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

303221230020 is an abundant number, since it is smaller than the sum of its proper divisors (656539893756).

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

303221230020 is a wasteful number, since it uses less digits than its factorization.

303221230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73241881 (or 73241876 counting only the distinct ones).

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

Adding to 303221230020 its reverse (20032122303), we get a palindrome (323253352323).

The spelling of 303221230020 in words is "three hundred three billion, two hundred twenty-one million, two hundred thirty thousand, twenty".