2204121061 has 2 divisors, whose sum is σ = 2204121062. Its totient is φ = 2204121060.

The previous prime is 2204121037. The next prime is 2204121079. The reversal of 2204121061 is 1601214022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1873244961 + 330876100 = 43281^2 + 18190^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204121061 - 2¹¹ = 2204119013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2204121001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102060530 + 1102060531.

It is an arithmetic number, because the mean of its divisors is an integer number (1102060531).

Almost surely, 2^2204121061 is an apocalyptic number.

It is an amenable number.

2204121061 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204121061 is an equidigital number, since it uses as much as digits as its factorization.

2204121061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2204121061 is about 46948.0677025157. The cubic root of 2204121061 is about 1301.4030337424.

Adding to 2204121061 its reverse (1601214022), we get a palindrome (3805335083).

The spelling of 2204121061 in words is "two billion, two hundred four million, one hundred twenty-one thousand, sixty-one".