220221222001111 has 4 divisors (see below), whose sum is σ = 220305372260512. Its totient is φ = 220137071741712.

The previous prime is 220221222001097. The next prime is 220221222001147. The reversal of 220221222001111 is 111100222122022.

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

It is a cyclic number.

It is not a de Polignac number, because 220221222001111 - 2⁴⁷ = 79483733645783 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 (220221222001411) 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, 42075125775 + ... + 42075131008.

It is an arithmetic number, because the mean of its divisors is an integer number (55076343065128).

Almost surely, 2^{220221222001111} is an apocalyptic number.

220221222001111 is a deficient number, since it is larger than the sum of its proper divisors (84150259401).

220221222001111 is an equidigital number, since it uses as much as digits as its factorization.

220221222001111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84150259400.

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

Adding to 220221222001111 its reverse (111100222122022), we get a palindrome (331321444123133).

The spelling of 220221222001111 in words is "two hundred twenty trillion, two hundred twenty-one billion, two hundred twenty-two million, one thousand, one hundred eleven".