2202202021 has 4 divisors (see below), whose sum is σ = 2206800000. Its totient is φ = 2197604044.

The previous prime is 2202201997. The next prime is 2202202039. The reversal of 2202202021 is 1202022022.

2202202021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1202022022 = 2 ⋅601011011.

It is a cyclic number.

It is not a de Polignac number, because 2202202021 - 2⁷ = 2202201893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2202201992 and 2202202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2202202721) 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, 2298271 + ... + 2299228.

It is an arithmetic number, because the mean of its divisors is an integer number (551700000).

Almost surely, 2^2202202021 is an apocalyptic number.

It is an amenable number.

2202202021 is a deficient number, since it is larger than the sum of its proper divisors (4597979).

2202202021 is an equidigital number, since it uses as much as digits as its factorization.

2202202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4597978.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 2202202021 is about 46927.6253501069. The cubic root of 2202202021 is about 1301.0252308952.

Adding to 2202202021 its reverse (1202022022), we get a palindrome (3404224043).

The spelling of 2202202021 in words is "two billion, two hundred two million, two hundred two thousand, twenty-one".