2352312221 has 8 divisors (see below), whose sum is σ = 2689218240. Its totient is φ = 2015621568.

The previous prime is 2352312203. The next prime is 2352312223. The reversal of 2352312221 is 1222132532.

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 2352312221 - 2¹⁰ = 2352311197 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 (2352312223) 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, 29711 + ... + 74748.

It is an arithmetic number, because the mean of its divisors is an integer number (336152280).

Almost surely, 2^2352312221 is an apocalyptic number.

It is an amenable number.

2352312221 is a deficient number, since it is larger than the sum of its proper divisors (336906019).

2352312221 is a wasteful number, since it uses less digits than its factorization.

2352312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107683.

The product of its digits is 1440, while the sum is 23.

The square root of 2352312221 is about 48500.6414493664. The cubic root of 2352312221 is about 1329.9387954951.

Adding to 2352312221 its reverse (1222132532), we get a palindrome (3574444753).

The spelling of 2352312221 in words is "two billion, three hundred fifty-two million, three hundred twelve thousand, two hundred twenty-one".