2301222221 has 8 divisors (see below), whose sum is σ = 2564830080. Its totient is φ = 2051863488.

The previous prime is 2301222199. The next prime is 2301222241. The reversal of 2301222221 is 1222221032.

2301222221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2301222221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2301222221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301222241) 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, 3561941 + ... + 3562586.

It is an arithmetic number, because the mean of its divisors is an integer number (320603760).

Almost surely, 2^2301222221 is an apocalyptic number.

It is an amenable number.

2301222221 is a deficient number, since it is larger than the sum of its proper divisors (263607859).

2301222221 is a wasteful number, since it uses less digits than its factorization.

2301222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7124563.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2301222221 is about 47971.0560755129. The cubic root of 2301222221 is about 1320.2398976669.

Adding to 2301222221 its reverse (1222221032), we get a palindrome (3523443253).

The spelling of 2301222221 in words is "two billion, three hundred one million, two hundred twenty-two thousand, two hundred twenty-one".