4234212221 has 8 divisors (see below), whose sum is σ = 4382721024. Its totient is φ = 4086448560.

The previous prime is 4234212197. The next prime is 4234212233. The reversal of 4234212221 is 1222124324.

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

It is a cyclic number.

It is not a de Polignac number, because 4234212221 - 2²² = 4230017917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4231212221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174710 + ... + 197463.

It is an arithmetic number, because the mean of its divisors is an integer number (547840128).

Almost surely, 2^4234212221 is an apocalyptic number.

It is an amenable number.

4234212221 is a deficient number, since it is larger than the sum of its proper divisors (148508803).

4234212221 is a wasteful number, since it uses less digits than its factorization.

4234212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372571.

The product of its digits is 1536, while the sum is 23.

The square root of 4234212221 is about 65070.8246528350. The cubic root of 4234212221 is about 1617.7976756021.

Adding to 4234212221 its reverse (1222124324), we get a palindrome (5456336545).

The spelling of 4234212221 in words is "four billion, two hundred thirty-four million, two hundred twelve thousand, two hundred twenty-one".