213221114 has 8 divisors (see below), whose sum is σ = 320970708. Its totient is φ = 106230880.

The previous prime is 213221087. The next prime is 213221117. The reversal of 213221114 is 411122312.

It can be written as a sum of positive squares in 2 ways, for example, as 180445489 + 32775625 = 13433^2 + 5725^2 .

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 = 213221092 and 213221101.

It is not an unprimeable number, because it can be changed into a prime (213221117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189137 + ... + 190260.

Almost surely, 2^213221114 is an apocalyptic number.

213221114 is a deficient number, since it is larger than the sum of its proper divisors (107749594).

213221114 is a wasteful number, since it uses less digits than its factorization.

213221114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379680.

The product of its digits is 96, while the sum is 17.

The square root of 213221114 is about 14602.0927952126. The cubic root of 213221114 is about 597.4158436121.

Adding to 213221114 its reverse (411122312), we get a palindrome (624343426).

The spelling of 213221114 in words is "two hundred thirteen million, two hundred twenty-one thousand, one hundred fourteen".