220103312 has 40 divisors (see below), whose sum is σ = 501009600. Its totient is φ = 92350080.

The previous prime is 220103309. The next prime is 220103327. The reversal of 220103312 is 213301022.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45812 + ... + 50387.

It is an arithmetic number, because the mean of its divisors is an integer number (12525240).

Almost surely, 2^220103312 is an apocalyptic number.

220103312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220103312 is an abundant number, since it is smaller than the sum of its proper divisors (280906288).

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

220103312 is a wasteful number, since it uses less digits than its factorization.

220103312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96231 (or 96225 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 220103312 is about 14835.8792122341. The cubic root of 220103312 is about 603.7755551026.

Adding to 220103312 its reverse (213301022), we get a palindrome (433404334).

The spelling of 220103312 in words is "two hundred twenty million, one hundred three thousand, three hundred twelve".