220212434 has 8 divisors (see below), whose sum is σ = 355727820. Its totient is φ = 101636496.

The previous prime is 220212409. The next prime is 220212467. The reversal of 220212434 is 434212022.

It can be written as a sum of positive squares in 2 ways, for example, as 208889209 + 11323225 = 14453^2 + 3365^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4234829 + ... + 4234880.

Almost surely, 2^220212434 is an apocalyptic number.

220212434 is a deficient number, since it is larger than the sum of its proper divisors (135515386).

220212434 is a wasteful number, since it uses less digits than its factorization.

220212434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8469724.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 220212434 is about 14839.5563949870. The cubic root of 220212434 is about 603.8753178161.

Adding to 220212434 its reverse (434212022), we get a palindrome (654424456).

The spelling of 220212434 in words is "two hundred twenty million, two hundred twelve thousand, four hundred thirty-four".