223032120221 has 8 divisors (see below), whose sum is σ = 224492237784. Its totient is φ = 221572503360.

The previous prime is 223032120209. The next prime is 223032120247. The reversal of 223032120221 is 122021230322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 40194636196 + 182837484025 = 200486^2 + 427595^2 .

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 223032120221 - 2¹⁰ = 223032119197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223032120193 and 223032120202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223032120271) 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, 790451 + ... + 1034831.

It is an arithmetic number, because the mean of its divisors is an integer number (28061529723).

Almost surely, 2^223032120221 is an apocalyptic number.

It is an amenable number.

223032120221 is a deficient number, since it is larger than the sum of its proper divisors (1460117563).

223032120221 is a wasteful number, since it uses less digits than its factorization.

223032120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250351.

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

Adding to 223032120221 its reverse (122021230322), we get a palindrome (345053350543).

The spelling of 223032120221 in words is "two hundred twenty-three billion, thirty-two million, one hundred twenty thousand, two hundred twenty-one".