2221105633 has 4 divisors (see below), whose sum is σ = 2223334420. Its totient is φ = 2218876848.

The previous prime is 2221105613. The next prime is 2221105657. The reversal of 2221105633 is 3365011222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3365011222 = 2 ⋅1682505611.

It can be written as a sum of positive squares in 2 ways, for example, as 822943969 + 1398161664 = 28687^2 + 37392^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221105633 - 2¹³ = 2221097441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2221105598 and 2221105607.

It is not an unprimeable number, because it can be changed into a prime (2221105613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1112898 + ... + 1114891.

It is an arithmetic number, because the mean of its divisors is an integer number (555833605).

Almost surely, 2^2221105633 is an apocalyptic number.

It is an amenable number.

2221105633 is a deficient number, since it is larger than the sum of its proper divisors (2228787).

2221105633 is an equidigital number, since it uses as much as digits as its factorization.

2221105633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228786.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2221105633 is about 47128.6073738658. The cubic root of 2221105633 is about 1304.7372788216.

Adding to 2221105633 its reverse (3365011222), we get a palindrome (5586116855).

The spelling of 2221105633 in words is "two billion, two hundred twenty-one million, one hundred five thousand, six hundred thirty-three".