2122244221 has 8 divisors (see below), whose sum is σ = 2196992000. Its totient is φ = 2047889520.

The previous prime is 2122244177. The next prime is 2122244263. The reversal of 2122244221 is 1224422212.

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 2122244221 - 2⁹ = 2122243709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122244192 and 2122244201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122244291) 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, 87261 + ... + 108898.

It is an arithmetic number, because the mean of its divisors is an integer number (274624000).

Almost surely, 2^2122244221 is an apocalyptic number.

It is an amenable number.

2122244221 is a deficient number, since it is larger than the sum of its proper divisors (74747779).

2122244221 is a wasteful number, since it uses less digits than its factorization.

2122244221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196539.

The product of its digits is 1024, while the sum is 22.

The square root of 2122244221 is about 46067.8219693530. The cubic root of 2122244221 is about 1285.0847993214.

Adding to 2122244221 its reverse (1224422212), we get a palindrome (3346666433).

The spelling of 2122244221 in words is "two billion, one hundred twenty-two million, two hundred forty-four thousand, two hundred twenty-one".