221314433 has 8 divisors (see below), whose sum is σ = 226920960. Its totient is φ = 215717920.

The previous prime is 221314403. The next prime is 221314439. The reversal of 221314433 is 334413122.

221314433 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221314433 is a prime.

It is a super-2 number, since 2×221314433² = 97960156508222978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221314399 and 221314408.

It is not an unprimeable number, because it can be changed into a prime (221314439) 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, 64208 + ... + 67566.

It is an arithmetic number, because the mean of its divisors is an integer number (28365120).

Almost surely, 2^221314433 is an apocalyptic number.

It is an amenable number.

221314433 is a deficient number, since it is larger than the sum of its proper divisors (5606527).

221314433 is a wasteful number, since it uses less digits than its factorization.

221314433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5007.

The product of its digits is 1728, while the sum is 23.

The square root of 221314433 is about 14876.6405145786. The cubic root of 221314433 is about 604.8809573855.

Adding to 221314433 its reverse (334413122), we get a palindrome (555727555).

The spelling of 221314433 in words is "two hundred twenty-one million, three hundred fourteen thousand, four hundred thirty-three".