2221120571 has 2 divisors, whose sum is σ = 2221120572. Its totient is φ = 2221120570.

The previous prime is 2221120507. The next prime is 2221120597. The reversal of 2221120571 is 1750211222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2221120571 - 2⁶ = 2221120507 is a prime.

It is not a weakly prime, because it can be changed into another prime (2221120171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1110560285 + 1110560286.

It is an arithmetic number, because the mean of its divisors is an integer number (1110560286).

Almost surely, 2^2221120571 is an apocalyptic number.

2221120571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2221120571 is an equidigital number, since it uses as much as digits as its factorization.

2221120571 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 2221120571 is about 47128.7658548365. The cubic root of 2221120571 is about 1304.7402038096.

Adding to 2221120571 its reverse (1750211222), we get a palindrome (3971331793).

The spelling of 2221120571 in words is "two billion, two hundred twenty-one million, one hundred twenty thousand, five hundred seventy-one".