221005014 has 24 divisors (see below), whose sum is σ = 456740280. Its totient is φ = 71290080.

The previous prime is 221005007. The next prime is 221005051. The reversal of 221005014 is 410500122.

It is a junction number, because it is equal to n+sod(n) for n = 221004984 and 221005002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13399 + ... + 24930.

It is an arithmetic number, because the mean of its divisors is an integer number (19030845).

Almost surely, 2^221005014 is an apocalyptic number.

221005014 is an abundant number, since it is smaller than the sum of its proper divisors (235735266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221005014 is a wasteful number, since it uses less digits than its factorization.

221005014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38396 (or 38365 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 221005014 is about 14866.2373854315. The cubic root of 221005014 is about 604.5989318685.

Adding to 221005014 its reverse (410500122), we get a palindrome (631505136).

The spelling of 221005014 in words is "two hundred twenty-one million, five thousand, fourteen".