4220020051 has 4 divisors (see below), whose sum is σ = 4544636992. Its totient is φ = 3895403112.

The previous prime is 4220020039. The next prime is 4220020073. The reversal of 4220020051 is 1500200224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4220020051 - 2⁵ = 4220020019 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (4220020001) 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, 162308451 + ... + 162308476.

It is an arithmetic number, because the mean of its divisors is an integer number (1136159248).

Almost surely, 2^4220020051 is an apocalyptic number.

4220020051 is a deficient number, since it is larger than the sum of its proper divisors (324616941).

4220020051 is a wasteful number, since it uses less digits than its factorization.

4220020051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324616940.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 4220020051 is about 64961.6814052715. The cubic root of 4220020051 is about 1615.9881489252.

Adding to 4220020051 its reverse (1500200224), we get a palindrome (5720220275).

The spelling of 4220020051 in words is "four billion, two hundred twenty million, twenty thousand, fifty-one".