220323030012 has 72 divisors (see below), whose sum is σ = 620724358800. Its totient is φ = 65483002368.

The previous prime is 220323029821. The next prime is 220323030013. The reversal of 220323030012 is 210030323022.

It is a happy number.

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 (220323030013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9462187 + ... + 9485442.

It is an arithmetic number, because the mean of its divisors is an integer number (8621171650).

Almost surely, 2^220323030012 is an apocalyptic number.

It is an amenable number.

220323030012 is an abundant number, since it is smaller than the sum of its proper divisors (400401328788).

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

220323030012 is a wasteful number, since it uses less digits than its factorization.

220323030012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18947675 (or 18947670 counting only the distinct ones).

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

Adding to 220323030012 its reverse (210030323022), we get a palindrome (430353353034).

The spelling of 220323030012 in words is "two hundred twenty billion, three hundred twenty-three million, thirty thousand, twelve".