2202612661 has 2 divisors, whose sum is σ = 2202612662. Its totient is φ = 2202612660.

The previous prime is 2202612617. The next prime is 2202612703. The reversal of 2202612661 is 1662162022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2159460900 + 43151761 = 46470^2 + 6569^2 .

It is a cyclic number.

It is not a de Polignac number, because 2202612661 - 2⁹ = 2202612149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2202612161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1101306330 + 1101306331.

It is an arithmetic number, because the mean of its divisors is an integer number (1101306331).

Almost surely, 2^2202612661 is an apocalyptic number.

It is an amenable number.

2202612661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2202612661 is an equidigital number, since it uses as much as digits as its factorization.

2202612661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2202612661 is about 46932.0003941873. Note that the first 3 decimals coincide. The cubic root of 2202612661 is about 1301.1060923530.

Adding to 2202612661 its reverse (1662162022), we get a palindrome (3864774683).

The spelling of 2202612661 in words is "two billion, two hundred two million, six hundred twelve thousand, six hundred sixty-one".