424212213 has 4 divisors (see below), whose sum is σ = 565616288. Its totient is φ = 282808140.

The previous prime is 424212209. The next prime is 424212233. The reversal of 424212213 is 312212424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 424212213 - 2² = 424212209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 424212213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424212233) 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, 70702033 + ... + 70702038.

It is an arithmetic number, because the mean of its divisors is an integer number (141404072).

Almost surely, 2^424212213 is an apocalyptic number.

It is an amenable number.

424212213 is a deficient number, since it is larger than the sum of its proper divisors (141404075).

424212213 is a wasteful number, since it uses less digits than its factorization.

424212213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141404074.

The product of its digits is 768, while the sum is 21.

The square root of 424212213 is about 20596.4126245325. The cubic root of 424212213 is about 751.3824652651.

Adding to 424212213 its reverse (312212424), we get a palindrome (736424637).

The spelling of 424212213 in words is "four hundred twenty-four million, two hundred twelve thousand, two hundred thirteen".