2203442021 has 8 divisors (see below), whose sum is σ = 2508266304. Its totient is φ = 1916036320.

The previous prime is 2203441973. The next prime is 2203442041. The reversal of 2203442021 is 1202443022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2203442021 - 2²² = 2199247717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2203441984 and 2203442002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203442041) 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 7 ways as a sum of consecutive naturals, for example, 4354376 + ... + 4354881.

It is an arithmetic number, because the mean of its divisors is an integer number (313533288).

Almost surely, 2^2203442021 is an apocalyptic number.

It is an amenable number.

2203442021 is a deficient number, since it is larger than the sum of its proper divisors (304824283).

2203442021 is a wasteful number, since it uses less digits than its factorization.

2203442021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8709291.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2203442021 is about 46940.8353249066. The cubic root of 2203442021 is about 1301.2693757056.

Adding to 2203442021 its reverse (1202443022), we get a palindrome (3405885043).

The spelling of 2203442021 in words is "two billion, two hundred three million, four hundred forty-two thousand, twenty-one".