223416021 has 8 divisors (see below), whose sum is σ = 298701184. Its totient is φ = 148537440.

The previous prime is 223416013. The next prime is 223416031. The reversal of 223416021 is 120614322.

223416021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223416021 - 2³ = 223416013 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 (223416031) 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, 100360 + ... + 102561.

It is an arithmetic number, because the mean of its divisors is an integer number (37337648).

Almost surely, 2^223416021 is an apocalyptic number.

It is an amenable number.

223416021 is a deficient number, since it is larger than the sum of its proper divisors (75285163).

223416021 is a wasteful number, since it uses less digits than its factorization.

223416021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203291.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 223416021 is about 14947.1074459241. The cubic root of 223416021 is about 606.7895659652.

The spelling of 223416021 in words is "two hundred twenty-three million, four hundred sixteen thousand, twenty-one".