223022421 has 36 divisors (see below), whose sum is σ = 345919392. Its totient is φ = 138197664.

The previous prime is 223022417. The next prime is 223022447. The reversal of 223022421 is 124220322.

223022421 is a `hidden beast` number, since 223 + 0 + 22 + 421 = 666.

223022421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223022421 - 2² = 223022417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223022394 and 223022403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223022461) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 282990 + ... + 283776.

It is an arithmetic number, because the mean of its divisors is an integer number (9608872).

Almost surely, 2^223022421 is an apocalyptic number.

It is an amenable number.

223022421 is a deficient number, since it is larger than the sum of its proper divisors (122896971).

223022421 is a wasteful number, since it uses less digits than its factorization.

223022421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890 (or 850 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 223022421 is about 14933.9352148052. The cubic root of 223022421 is about 606.4330222063.

Adding to 223022421 its reverse (124220322), we get a palindrome (347242743).

The spelling of 223022421 in words is "two hundred twenty-three million, twenty-two thousand, four hundred twenty-one".