220310223612 has 12 divisors (see below), whose sum is σ = 514057188456. Its totient is φ = 73436741200.

The previous prime is 220310223611. The next prime is 220310223629. The reversal of 220310223612 is 216322013022.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220310223611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9179592639 + ... + 9179592662.

It is an arithmetic number, because the mean of its divisors is an integer number (42838099038).

Almost surely, 2^220310223612 is an apocalyptic number.

It is an amenable number.

220310223612 is an abundant number, since it is smaller than the sum of its proper divisors (293746964844).

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

220310223612 is a wasteful number, since it uses less digits than its factorization.

220310223612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18359185308 (or 18359185306 counting only the distinct ones).

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

Adding to 220310223612 its reverse (216322013022), we get a palindrome (436632236634).

The spelling of 220310223612 in words is "two hundred twenty billion, three hundred ten million, two hundred twenty-three thousand, six hundred twelve".