2202230021 has 4 divisors (see below), whose sum is σ = 2203924044. Its totient is φ = 2200536000.

The previous prime is 2202230011. The next prime is 2202230029. The reversal of 2202230021 is 1200322022.

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 185232100 + 2016997921 = 13610^2 + 44911^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202230021 - 2²² = 2198035717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202229978 and 2202230005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202230029) 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, 845060 + ... + 847661.

It is an arithmetic number, because the mean of its divisors is an integer number (550981011).

Almost surely, 2^2202230021 is an apocalyptic number.

It is an amenable number.

2202230021 is a deficient number, since it is larger than the sum of its proper divisors (1694023).

2202230021 is a wasteful number, since it uses less digits than its factorization.

2202230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694022.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2202230021 is about 46927.9236808960. The cubic root of 2202230021 is about 1301.0307448538.

Adding to 2202230021 its reverse (1200322022), we get a palindrome (3402552043).

The spelling of 2202230021 in words is "two billion, two hundred two million, two hundred thirty thousand, twenty-one".