434213113221 has 24 divisors (see below), whose sum is σ = 636167024064. Its totient is φ = 285337019520.

The previous prime is 434213113199. The next prime is 434213113223. The reversal of 434213113221 is 122311312434.

434213113221 is a `hidden beast` number, since 4 + 3 + 4 + 21 + 311 + 322 + 1 = 666.

It is not a de Polignac number, because 434213113221 - 2¹⁸ = 434212851077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434213113223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3007530 + ... + 3148596.

It is an arithmetic number, because the mean of its divisors is an integer number (26506959336).

Almost surely, 2^434213113221 is an apocalyptic number.

It is an amenable number.

434213113221 is a deficient number, since it is larger than the sum of its proper divisors (201953910843).

434213113221 is a wasteful number, since it uses less digits than its factorization.

434213113221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145961 (or 145958 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 434213113221 its reverse (122311312434), we get a palindrome (556524425655).

The spelling of 434213113221 in words is "four hundred thirty-four billion, two hundred thirteen million, one hundred thirteen thousand, two hundred twenty-one".