220220011112221 has 4 divisors (see below), whose sum is σ = 220224590395744. Its totient is φ = 220215431828700.

The previous prime is 220220011112207. The next prime is 220220011112333. The reversal of 220220011112221 is 122211110022022.

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.

It is a cyclic number.

It is not a de Polignac number, because 220220011112221 - 2⁴⁷ = 79482522756893 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 (220220011182221) 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, 2289569625 + ... + 2289665806.

It is an arithmetic number, because the mean of its divisors is an integer number (55056147598936).

Almost surely, 2^{220220011112221} is an apocalyptic number.

It is an amenable number.

220220011112221 is a deficient number, since it is larger than the sum of its proper divisors (4579283523).

220220011112221 is an equidigital number, since it uses as much as digits as its factorization.

220220011112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4579283522.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220220011112221 its reverse (122211110022022), we get a palindrome (342431121134243).

The spelling of 220220011112221 in words is "two hundred twenty trillion, two hundred twenty billion, eleven million, one hundred twelve thousand, two hundred twenty-one".