221034434 has 8 divisors (see below), whose sum is σ = 332055228. Its totient is φ = 110349360.

The previous prime is 221034419. The next prime is 221034449. The reversal of 221034434 is 434430122.

221034434 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (221034419) and next prime (221034449).

It can be written as a sum of positive squares in 2 ways, for example, as 208889209 + 12145225 = 14453^2 + 3485^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82277 + ... + 84920.

Almost surely, 2^221034434 is an apocalyptic number.

221034434 is a deficient number, since it is larger than the sum of its proper divisors (111020794).

221034434 is a wasteful number, since it uses less digits than its factorization.

221034434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167860.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 221034434 is about 14867.2268429590. The cubic root of 221034434 is about 604.6257585772.

Adding to 221034434 its reverse (434430122), we get a palindrome (655464556).

The spelling of 221034434 in words is "two hundred twenty-one million, thirty-four thousand, four hundred thirty-four".