2224214124221 has 4 divisors (see below), whose sum is σ = 2278463249244. Its totient is φ = 2169964999200.

The previous prime is 2224214124211. The next prime is 2224214124233. The reversal of 2224214124221 is 1224214124222.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 219126972100 + 2005087152121 = 468110^2 + 1416011^2 .

It is a cyclic number.

It is not a de Polignac number, because 2224214124221 - 2¹⁴ = 2224214107837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2224214124211) 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, 27124562450 + ... + 27124562531.

It is an arithmetic number, because the mean of its divisors is an integer number (569615812311).

Almost surely, 2^{2224214124221} is an apocalyptic number.

It is an amenable number.

2224214124221 is a deficient number, since it is larger than the sum of its proper divisors (54249125023).

2224214124221 is an equidigital number, since it uses as much as digits as its factorization.

2224214124221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54249125022.

The product of its digits is 8192, while the sum is 29.

Adding to 2224214124221 its reverse (1224214124222), we get a palindrome (3448428248443).

Subtracting from 2224214124221 its reverse (1224214124222), we obtain a palindrome (999999999999).

The spelling of 2224214124221 in words is "two trillion, two hundred twenty-four billion, two hundred fourteen million, one hundred twenty-four thousand, two hundred twenty-one".