220221011200221 has 24 divisors (see below), whose sum is σ = 318250965599424. Its totient is φ = 146742960127680.

The previous prime is 220221011200217. The next prime is 220221011200247. The reversal of 220221011200221 is 122002110122022.

It is a happy number.

220221011200221 is a `hidden beast` number, since 2 + 20 + 2 + 210 + 11 + 200 + 221 = 666.

It is not a de Polignac number, because 220221011200221 - 2² = 220221011200217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220221011200194 and 220221011200203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220221011200921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443539176 + ... + 444035406.

It is an arithmetic number, because the mean of its divisors is an integer number (13260456899976).

Almost surely, 2^{220221011200221} is an apocalyptic number.

It is an amenable number.

220221011200221 is a deficient number, since it is larger than the sum of its proper divisors (98029954399203).

220221011200221 is a wasteful number, since it uses less digits than its factorization.

220221011200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520001 (or 519998 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220221011200221 its reverse (122002110122022), we get a palindrome (342223121322243).

The spelling of 220221011200221 in words is "two hundred twenty trillion, two hundred twenty-one billion, eleven million, two hundred thousand, two hundred twenty-one".