2301123221 has 4 divisors (see below), whose sum is σ = 2301298944. Its totient is φ = 2300947500.

The previous prime is 2301123197. The next prime is 2301123229. The reversal of 2301123221 is 1223211032.

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 2301123221 - 2⁶ = 2301123157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2301123221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301123229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66485 + ... + 94986.

It is an arithmetic number, because the mean of its divisors is an integer number (575324736).

Almost surely, 2^2301123221 is an apocalyptic number.

It is an amenable number.

2301123221 is a deficient number, since it is larger than the sum of its proper divisors (175723).

2301123221 is a wasteful number, since it uses less digits than its factorization.

2301123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175722.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2301123221 is about 47970.0241921974. The cubic root of 2301123221 is about 1320.2209648837.

Adding to 2301123221 its reverse (1223211032), we get a palindrome (3524334253).

The spelling of 2301123221 in words is "two billion, three hundred one million, one hundred twenty-three thousand, two hundred twenty-one".