220223212 has 24 divisors (see below), whose sum is σ = 422250192. Its totient is φ = 99667200.

The previous prime is 220223197. The next prime is 220223231. The reversal of 220223212 is 212322022.

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 7 ways as a sum of consecutive naturals, for example, 489 + ... + 20992.

It is an arithmetic number, because the mean of its divisors is an integer number (17593758).

Almost surely, 2^220223212 is an apocalyptic number.

220223212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220223212 is a deficient number, since it is larger than the sum of its proper divisors (202026980).

220223212 is a wasteful number, since it uses less digits than its factorization.

220223212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21729 (or 21727 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 220223212 is about 14839.9195415609. The cubic root of 220223212 is about 603.8851696092.

Adding to 220223212 its reverse (212322022), we get a palindrome (432545234).

The spelling of 220223212 in words is "two hundred twenty million, two hundred twenty-three thousand, two hundred twelve".