23032221221 has 8 divisors (see below), whose sum is σ = 23163582624. Its totient is φ = 22900905360.

The previous prime is 23032221139. The next prime is 23032221253. The reversal of 23032221221 is 12212223032.

It is a happy number.

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 23032221221 - 2¹⁸ = 23031959077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23032221193 and 23032221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23032221521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1934930 + ... + 1946796.

It is an arithmetic number, because the mean of its divisors is an integer number (2895447828).

Almost surely, 2^23032221221 is an apocalyptic number.

It is an amenable number.

23032221221 is a deficient number, since it is larger than the sum of its proper divisors (131361403).

23032221221 is a wasteful number, since it uses less digits than its factorization.

23032221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22771.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23032221221 its reverse (12212223032), we get a palindrome (35244444253).

The spelling of 23032221221 in words is "twenty-three billion, thirty-two million, two hundred twenty-one thousand, two hundred twenty-one".