220216051 has 4 divisors (see below), whose sum is σ = 240235704. Its totient is φ = 200196400.

The previous prime is 220216049. The next prime is 220216141. The reversal of 220216051 is 150612022.

220216051 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.

It is a cyclic number.

It is not a de Polignac number, because 220216051 - 2¹ = 220216049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220216001) 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, 10009810 + ... + 10009831.

It is an arithmetic number, because the mean of its divisors is an integer number (60058926).

Almost surely, 2^220216051 is an apocalyptic number.

220216051 is a deficient number, since it is larger than the sum of its proper divisors (20019653).

220216051 is a wasteful number, since it uses less digits than its factorization.

220216051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20019652.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 220216051 is about 14839.6782647064. The cubic root of 220216051 is about 603.8786240252.

Adding to 220216051 its reverse (150612022), we get a palindrome (370828073).

The spelling of 220216051 in words is "two hundred twenty million, two hundred sixteen thousand, fifty-one".