220012320 has 96 divisors (see below), whose sum is σ = 756060480. Its totient is φ = 53335040.

The previous prime is 220012297. The next prime is 220012337. The reversal of 220012320 is 23210022.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 220012296 and 220012305.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 15555 + ... + 26114.

It is an arithmetic number, because the mean of its divisors is an integer number (7875630).

Almost surely, 2^220012320 is an apocalyptic number.

220012320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220012320 is an abundant number, since it is smaller than the sum of its proper divisors (536048160).

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

220012320 is a wasteful number, since it uses less digits than its factorization.

220012320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41698 (or 41690 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 220012320 is about 14832.8122754925. The cubic root of 220012320 is about 603.6923421828.

Adding to 220012320 its reverse (23210022), we get a palindrome (243222342).

The spelling of 220012320 in words is "two hundred twenty million, twelve thousand, three hundred twenty".