2221303033 has 4 divisors (see below), whose sum is σ = 2229208308. Its totient is φ = 2213397760.

The previous prime is 2221303003. The next prime is 2221303081. The reversal of 2221303033 is 3303031222.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1463292009 + 758011024 = 38253^2 + 27532^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221303033 - 2²⁹ = 1684432121 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 2221303033.

It is not an unprimeable number, because it can be changed into a prime (2221303003) 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, 3952216 + ... + 3952777.

It is an arithmetic number, because the mean of its divisors is an integer number (557302077).

Almost surely, 2^2221303033 is an apocalyptic number.

It is an amenable number.

2221303033 is a deficient number, since it is larger than the sum of its proper divisors (7905275).

2221303033 is an equidigital number, since it uses as much as digits as its factorization.

2221303033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7905274.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 2221303033 is about 47130.7015967299. The cubic root of 2221303033 is about 1304.7759303690.

Adding to 2221303033 its reverse (3303031222), we get a palindrome (5524334255).

The spelling of 2221303033 in words is "two billion, two hundred twenty-one million, three hundred three thousand, thirty-three".