220221323222403 has 16 divisors (see below), whose sum is σ = 303788557061280. Its totient is φ = 141735319358976.

The previous prime is 220221323222401. The next prime is 220221323222419. The reversal of 220221323222403 is 304222323122022.

It is not a de Polignac number, because 220221323222403 - 2¹ = 220221323222401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220221323222401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145106550 + ... + 146616347.

It is an arithmetic number, because the mean of its divisors is an integer number (18986784816330).

Almost surely, 2^{220221323222403} is an apocalyptic number.

220221323222403 is a deficient number, since it is larger than the sum of its proper divisors (83567233838877).

220221323222403 is a wasteful number, since it uses less digits than its factorization.

220221323222403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291731606.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 220221323222403 its reverse (304222323122022), we get a palindrome (524443646344425).

The spelling of 220221323222403 in words is "two hundred twenty trillion, two hundred twenty-one billion, three hundred twenty-three million, two hundred twenty-two thousand, four hundred three".