2022605561 has 2 divisors, whose sum is σ = 2022605562. Its totient is φ = 2022605560.

The previous prime is 2022605539. The next prime is 2022605569. The reversal of 2022605561 is 1655062202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1653235600 + 369369961 = 40660^2 + 19219^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022605561 - 2¹⁰ = 2022604537 is a prime.

It is not a weakly prime, because it can be changed into another prime (2022605569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011302780 + 1011302781.

It is an arithmetic number, because the mean of its divisors is an integer number (1011302781).

Almost surely, 2^2022605561 is an apocalyptic number.

It is an amenable number.

2022605561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022605561 is an equidigital number, since it uses as much as digits as its factorization.

2022605561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2022605561 is about 44973.3872529077. The cubic root of 2022605561 is about 1264.6501474370.

Adding to 2022605561 its reverse (1655062202), we get a palindrome (3677667763).

The spelling of 2022605561 in words is "two billion, twenty-two million, six hundred five thousand, five hundred sixty-one".