221023214 has 8 divisors (see below), whose sum is σ = 333253200. Its totient is φ = 109938816.

The previous prime is 221023183. The next prime is 221023217. The reversal of 221023214 is 412320122.

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

It is a super-3 number, since 3×221023214³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 221023192 and 221023201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221023217) 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, 285914 + ... + 286685.

It is an arithmetic number, because the mean of its divisors is an integer number (41656650).

Almost surely, 2^221023214 is an apocalyptic number.

221023214 is a deficient number, since it is larger than the sum of its proper divisors (112229986).

221023214 is a wasteful number, since it uses less digits than its factorization.

221023214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572794.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 221023214 is about 14866.8494981284. The cubic root of 221023214 is about 604.6155278698.

Adding to 221023214 its reverse (412320122), we get a palindrome (633343336).

The spelling of 221023214 in words is "two hundred twenty-one million, twenty-three thousand, two hundred fourteen".