2202223421 has 2 divisors, whose sum is σ = 2202223422. Its totient is φ = 2202223420.

The previous prime is 2202223417. The next prime is 2202223451. The reversal of 2202223421 is 1243222022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2182197796 + 20025625 = 46714^2 + 4475^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202223421 - 2² = 2202223417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2202223393 and 2202223402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2202223451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101111710 + 1101111711.

It is an arithmetic number, because the mean of its divisors is an integer number (1101111711).

Almost surely, 2^2202223421 is an apocalyptic number.

It is an amenable number.

2202223421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202223421 is an equidigital number, since it uses as much as digits as its factorization.

2202223421 is an evil number, because the sum of its binary digits is even.

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

The square root of 2202223421 is about 46927.8533602380. The cubic root of 2202223421 is about 1301.0294451392.

Adding to 2202223421 its reverse (1243222022), we get a palindrome (3445445443).

The spelling of 2202223421 in words is "two billion, two hundred two million, two hundred twenty-three thousand, four hundred twenty-one".