4234032231221 has 16 divisors (see below), whose sum is σ = 4617632409600. Its totient is φ = 3858708267648.

The previous prime is 4234032231197. The next prime is 4234032231241. The reversal of 4234032231221 is 1221322304324.

It is a de Polignac number, because none of the positive numbers 2^k-4234032231221 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 (4234032231241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30789665 + ... + 30926873.

It is an arithmetic number, because the mean of its divisors is an integer number (288602025600).

Almost surely, 2^{4234032231221} is an apocalyptic number.

It is an amenable number.

4234032231221 is a deficient number, since it is larger than the sum of its proper divisors (383600178379).

4234032231221 is a wasteful number, since it uses less digits than its factorization.

4234032231221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167348.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 4234032231221 its reverse (1221322304324), we get a palindrome (5455354535545).

The spelling of 4234032231221 in words is "four trillion, two hundred thirty-four billion, thirty-two million, two hundred thirty-one thousand, two hundred twenty-one".