220223412 has 36 divisors (see below), whose sum is σ = 557480196. Its totient is φ = 73301760.

The previous prime is 220223309. The next prime is 220223447. The reversal of 220223412 is 214322022.

It can be written as a sum of positive squares in 2 ways, for example, as 105390756 + 114832656 = 10266^2 + 10716^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 23212 + ... + 31292.

It is an arithmetic number, because the mean of its divisors is an integer number (15485561).

Almost surely, 2^220223412 is an apocalyptic number.

It is an amenable number.

220223412 is an abundant number, since it is smaller than the sum of its proper divisors (337256784).

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

220223412 is a wasteful number, since it uses less digits than its factorization.

220223412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8848 (or 8843 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 220223412 is about 14839.9262801403. The cubic root of 220223412 is about 603.8853524192.

Adding to 220223412 its reverse (214322022), we get a palindrome (434545434).

The spelling of 220223412 in words is "two hundred twenty million, two hundred twenty-three thousand, four hundred twelve".