2224313021221 has 4 divisors (see below), whose sum is σ = 2225350966912. Its totient is φ = 2223275075532.

The previous prime is 2224313021179. The next prime is 2224313021237. The reversal of 2224313021221 is 1221203134222.

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 2224313021221 - 2⁷ = 2224313021093 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 (2224313022221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518969631 + ... + 518973916.

It is an arithmetic number, because the mean of its divisors is an integer number (556337741728).

Almost surely, 2^{2224313021221} is an apocalyptic number.

It is an amenable number.

2224313021221 is a deficient number, since it is larger than the sum of its proper divisors (1037945691).

2224313021221 is a wasteful number, since it uses less digits than its factorization.

2224313021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037945690.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2224313021221 its reverse (1221203134222), we get a palindrome (3445516155443).

The spelling of 2224313021221 in words is "two trillion, two hundred twenty-four billion, three hundred thirteen million, twenty-one thousand, two hundred twenty-one".