220221332201 has 4 divisors (see below), whose sum is σ = 237161434692. Its totient is φ = 203281229712.

The previous prime is 220221332197. The next prime is 220221332207. The reversal of 220221332201 is 102233122022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17879701225 + 202341630976 = 133715^2 + 449824^2 .

It is a cyclic number.

It is not a de Polignac number, because 220221332201 - 2² = 220221332197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220221332207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8470051226 + ... + 8470051251.

It is an arithmetic number, because the mean of its divisors is an integer number (59290358673).

Almost surely, 2^220221332201 is an apocalyptic number.

It is an amenable number.

220221332201 is a deficient number, since it is larger than the sum of its proper divisors (16940102491).

220221332201 is a wasteful number, since it uses less digits than its factorization.

220221332201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16940102490.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 220221332201 its reverse (102233122022), we get a palindrome (322454454223).

The spelling of 220221332201 in words is "two hundred twenty billion, two hundred twenty-one million, three hundred thirty-two thousand, two hundred one".