4819995221 has 4 divisors (see below), whose sum is σ = 5073679200. Its totient is φ = 4566311244.

The previous prime is 4819995197. The next prime is 4819995241. The reversal of 4819995221 is 1225999184.

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 not a de Polignac number, because 4819995221 - 2⁶ = 4819995157 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 4819995221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4819995241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126841961 + ... + 126841998.

It is an arithmetic number, because the mean of its divisors is an integer number (1268419800).

Almost surely, 2^4819995221 is an apocalyptic number.

It is an amenable number.

4819995221 is a deficient number, since it is larger than the sum of its proper divisors (253683979).

4819995221 is a wasteful number, since it uses less digits than its factorization.

4819995221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253683978.

The product of its digits is 466560, while the sum is 50.

The square root of 4819995221 is about 69426.1854129982. The cubic root of 4819995221 is about 1689.2043943668.

The spelling of 4819995221 in words is "four billion, eight hundred nineteen million, nine hundred ninety-five thousand, two hundred twenty-one".