2216220023 has 4 divisors (see below), whose sum is σ = 2216842488. Its totient is φ = 2215597560.

The previous prime is 2216220001. The next prime is 2216220047. The reversal of 2216220023 is 3200226122.

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 2216220023 - 2⁸ = 2216219767 is a prime.

It is a super-2 number, since 2×2216220023² = 9823262380692241058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2216219977 and 2216220004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2216220053) 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, 305861 + ... + 313022.

It is an arithmetic number, because the mean of its divisors is an integer number (554210622).

Almost surely, 2^2216220023 is an apocalyptic number.

2216220023 is a deficient number, since it is larger than the sum of its proper divisors (622465).

2216220023 is an equidigital number, since it uses as much as digits as its factorization.

2216220023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622464.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2216220023 is about 47076.7460961354. The cubic root of 2216220023 is about 1303.7799302347.

Adding to 2216220023 its reverse (3200226122), we get a palindrome (5416446145).

The spelling of 2216220023 in words is "two billion, two hundred sixteen million, two hundred twenty thousand, twenty-three".