2212221533 has 2 divisors, whose sum is σ = 2212221534. Its totient is φ = 2212221532.

The previous prime is 2212221503. The next prime is 2212221541. The reversal of 2212221533 is 3351222122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1800050329 + 412171204 = 42427^2 + 20302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212221533 is a prime.

It is a super-2 number, since 2×2212221533² = 9787848222137740178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2212221499 and 2212221508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212221503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106110766 + 1106110767.

It is an arithmetic number, because the mean of its divisors is an integer number (1106110767).

Almost surely, 2^2212221533 is an apocalyptic number.

It is an amenable number.

2212221533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212221533 is an equidigital number, since it uses as much as digits as its factorization.

2212221533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 2212221533 is about 47034.2591416087. The cubic root of 2212221533 is about 1302.9953677389.

Adding to 2212221533 its reverse (3351222122), we get a palindrome (5563443655).

The spelling of 2212221533 in words is "two billion, two hundred twelve million, two hundred twenty-one thousand, five hundred thirty-three".