4321425526221 has 4 divisors (see below), whose sum is σ = 5761900701632. Its totient is φ = 2880950350812.

The previous prime is 4321425526157. The next prime is 4321425526267. The reversal of 4321425526221 is 1226255241234.

4321425526221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4321425526221 - 2⁶ = 4321425526157 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 4321425526221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4321425326221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 720237587701 + ... + 720237587706.

It is an arithmetic number, because the mean of its divisors is an integer number (1440475175408).

Almost surely, 2^{4321425526221} is an apocalyptic number.

It is an amenable number.

4321425526221 is a deficient number, since it is larger than the sum of its proper divisors (1440475175411).

4321425526221 is a wasteful number, since it uses less digits than its factorization.

4321425526221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440475175410.

The product of its digits is 230400, while the sum is 39.

The spelling of 4321425526221 in words is "four trillion, three hundred twenty-one billion, four hundred twenty-five million, five hundred twenty-six thousand, two hundred twenty-one".