23200232221 has 4 divisors (see below), whose sum is σ = 23202700092. Its totient is φ = 23197764352.

The previous prime is 23200232173. The next prime is 23200232249. The reversal of 23200232221 is 12223200232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17862322500 + 5337909721 = 133650^2 + 73061^2 .

It is a cyclic number.

It is not a de Polignac number, because 23200232221 - 2¹³ = 23200224029 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 (23200232281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1219780 + ... + 1238653.

It is an arithmetic number, because the mean of its divisors is an integer number (5800675023).

Almost surely, 2^23200232221 is an apocalyptic number.

It is an amenable number.

23200232221 is a deficient number, since it is larger than the sum of its proper divisors (2467871).

23200232221 is an equidigital number, since it uses as much as digits as its factorization.

23200232221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467870.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 23200232221 its reverse (12223200232), we get a palindrome (35423432453).

The spelling of 23200232221 in words is "twenty-three billion, two hundred million, two hundred thirty-two thousand, two hundred twenty-one".