2224112555221 has 8 divisors (see below), whose sum is σ = 2291540180504. Its totient is φ = 2157683857920.

The previous prime is 2224112555191. The next prime is 2224112555227. The reversal of 2224112555221 is 1225552114222.

It can be written as a sum of positive squares in 4 ways, for example, as 207184280625 + 2016928274596 = 455175^2 + 1420186^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2224112555221 - 2³⁹ = 1674356741333 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 (2224112555227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249727476 + ... + 249736381.

It is an arithmetic number, because the mean of its divisors is an integer number (286442522563).

Almost surely, 2^{2224112555221} is an apocalyptic number.

It is an amenable number.

2224112555221 is a deficient number, since it is larger than the sum of its proper divisors (67427625283).

2224112555221 is an equidigital number, since it uses as much as digits as its factorization.

2224112555221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499463991.

The product of its digits is 32000, while the sum is 34.

Adding to 2224112555221 its reverse (1225552114222), we get a palindrome (3449664669443).

The spelling of 2224112555221 in words is "two trillion, two hundred twenty-four billion, one hundred twelve million, five hundred fifty-five thousand, two hundred twenty-one".