220321321124 has 6 divisors (see below), whose sum is σ = 385562311974. Its totient is φ = 110160660560.

The previous prime is 220321321091. The next prime is 220321321139. The reversal of 220321321124 is 421123123022.

It can be written as a sum of positive squares in only one way, i.e., 176426881024 + 43894440100 = 420032^2 + 209510^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 220321321124.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27540165137 + ... + 27540165144.

It is an arithmetic number, because the mean of its divisors is an integer number (64260385329).

Almost surely, 2^220321321124 is an apocalyptic number.

It is an amenable number.

220321321124 is a deficient number, since it is larger than the sum of its proper divisors (165240990850).

220321321124 is a wasteful number, since it uses less digits than its factorization.

220321321124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55080330285 (or 55080330283 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 220321321124 its reverse (421123123022), we get a palindrome (641444444146).

The spelling of 220321321124 in words is "two hundred twenty billion, three hundred twenty-one million, three hundred twenty-one thousand, one hundred twenty-four".