220000301221 has 4 divisors (see below), whose sum is σ = 220009452832. Its totient is φ = 219991149612.

The previous prime is 220000301203. The next prime is 220000301239. The reversal of 220000301221 is 122103000022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122103000022 = 2 ⋅61051500011.

It is an interprime number because it is at equal distance from previous prime (220000301203) and next prime (220000301239).

It is a cyclic number.

It is not a de Polignac number, because 220000301221 - 2¹⁷ = 220000170149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220000301021) 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, 4539651 + ... + 4587856.

It is an arithmetic number, because the mean of its divisors is an integer number (55002363208).

Almost surely, 2^220000301221 is an apocalyptic number.

It is an amenable number.

220000301221 is a deficient number, since it is larger than the sum of its proper divisors (9151611).

220000301221 is an equidigital number, since it uses as much as digits as its factorization.

220000301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9151610.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 220000301221 its reverse (122103000022), we get a palindrome (342103301243).

The spelling of 220000301221 in words is "two hundred twenty billion, three hundred one thousand, two hundred twenty-one".