221052214 has 8 divisors (see below), whose sum is σ = 334797840. Its totient is φ = 109452936.

The previous prime is 221052203. The next prime is 221052217. The reversal of 221052214 is 412250122.

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

It is a junction number, because it is equal to n+sod(n) for n = 221052191 and 221052200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221052217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536329 + ... + 536740.

It is an arithmetic number, because the mean of its divisors is an integer number (41849730).

Almost surely, 2^221052214 is an apocalyptic number.

221052214 is a deficient number, since it is larger than the sum of its proper divisors (113745626).

221052214 is a wasteful number, since it uses less digits than its factorization.

221052214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073174.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 221052214 is about 14867.8247904662. The cubic root of 221052214 is about 604.6419701655.

The spelling of 221052214 in words is "two hundred twenty-one million, fifty-two thousand, two hundred fourteen".