5622072221 has 2 divisors, whose sum is σ = 5622072222. Its totient is φ = 5622072220.

The previous prime is 5622072191. The next prime is 5622072277. The reversal of 5622072221 is 1222702265.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5374356100 + 247716121 = 73310^2 + 15739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5622072221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5622072121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2811036110 + 2811036111.

It is an arithmetic number, because the mean of its divisors is an integer number (2811036111).

Almost surely, 2^5622072221 is an apocalyptic number.

It is an amenable number.

5622072221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5622072221 is an equidigital number, since it uses as much as digits as its factorization.

5622072221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 5622072221 is about 74980.4789328529. The cubic root of 5622072221 is about 1778.1380417319.

Adding to 5622072221 its reverse (1222702265), we get a palindrome (6844774486).

The spelling of 5622072221 in words is "five billion, six hundred twenty-two million, seventy-two thousand, two hundred twenty-one".