4869660221 has 4 divisors (see below), whose sum is σ = 4869907392. Its totient is φ = 4869413052.

The previous prime is 4869660209. The next prime is 4869660239. The reversal of 4869660221 is 1220669684.

4869660221 is digitally balanced in base 3, 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4869660221 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 (4869660281) 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, 91205 + ... + 134378.

It is an arithmetic number, because the mean of its divisors is an integer number (1217476848).

Almost surely, 2^4869660221 is an apocalyptic number.

It is an amenable number.

4869660221 is a deficient number, since it is larger than the sum of its proper divisors (247171).

4869660221 is a wasteful number, since it uses less digits than its factorization.

4869660221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247170.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 4869660221 is about 69782.9507902897. The cubic root of 4869660221 is about 1694.9864074811.

The spelling of 4869660221 in words is "four billion, eight hundred sixty-nine million, six hundred sixty thousand, two hundred twenty-one".