221021114 has 8 divisors (see below), whose sum is σ = 351033588. Its totient is φ = 104009920.

The previous prime is 221021111. The next prime is 221021137. The reversal of 221021114 is 411120122.

It is a happy number.

221021114 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 216590089 + 4431025 = 14717^2 + 2105^2 .

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

It is not an unprimeable number, because it can be changed into a prime (221021111) 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, 3250277 + ... + 3250344.

Almost surely, 2^221021114 is an apocalyptic number.

221021114 is a deficient number, since it is larger than the sum of its proper divisors (130012474).

221021114 is a wasteful number, since it uses less digits than its factorization.

221021114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6500640.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 221021114 is about 14866.7788710265. The cubic root of 221021114 is about 604.6136129931.

Adding to 221021114 its reverse (411120122), we get a palindrome (632141236).

The spelling of 221021114 in words is "two hundred twenty-one million, twenty-one thousand, one hundred fourteen".