4213145221 has 8 divisors (see below), whose sum is σ = 4404744000. Its totient is φ = 4022248032.

The previous prime is 4213145213. The next prime is 4213145227. The reversal of 4213145221 is 1225413124.

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 4213145221 - 2³ = 4213145213 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 (4213145227) 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, 163096 + ... + 187153.

It is an arithmetic number, because the mean of its divisors is an integer number (550593000).

Almost surely, 2^4213145221 is an apocalyptic number.

It is an amenable number.

4213145221 is a deficient number, since it is larger than the sum of its proper divisors (191598779).

4213145221 is a wasteful number, since it uses less digits than its factorization.

4213145221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350795.

The product of its digits is 1920, while the sum is 25.

The square root of 4213145221 is about 64908.7453352782. The cubic root of 4213145221 is about 1615.1101371275.

Adding to 4213145221 its reverse (1225413124), we get a palindrome (5438558345).

The spelling of 4213145221 in words is "four billion, two hundred thirteen million, one hundred forty-five thousand, two hundred twenty-one".