23341221 has 24 divisors (see below), whose sum is σ = 35881560. Its totient is φ = 14570496.

The previous prime is 23341211. The next prime is 23341231. The reversal of 23341221 is 12214332.

23341221 is a `hidden beast` number, since 233 + 412 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (23341211) and next prime (23341231).

It can be written as a sum of positive squares in 4 ways, for example, as 12152196 + 11189025 = 3486^2 + 3345^2 .

It is not a de Polignac number, because 23341221 - 2⁵ = 23341189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23341194 and 23341203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23341211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56865 + ... + 57273.

It is an arithmetic number, because the mean of its divisors is an integer number (1495065).

Almost surely, 2^23341221 is an apocalyptic number.

It is an amenable number.

23341221 is a deficient number, since it is larger than the sum of its proper divisors (12540339).

23341221 is a wasteful number, since it uses less digits than its factorization.

23341221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 802 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 23341221 is about 4831.2752974758. The cubic root of 23341221 is about 285.7861581449.

Adding to 23341221 its reverse (12214332), we get a palindrome (35555553).

The spelling of 23341221 in words is "twenty-three million, three hundred forty-one thousand, two hundred twenty-one".