4227102661 has 2 divisors, whose sum is σ = 4227102662. Its totient is φ = 4227102660.

The previous prime is 4227102641. The next prime is 4227102701. The reversal of 4227102661 is 1662017224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3665697025 + 561405636 = 60545^2 + 23694^2 .

It is a cyclic number.

It is not a de Polignac number, because 4227102661 - 2²⁷ = 4092884933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4227102631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2113551330 + 2113551331.

It is an arithmetic number, because the mean of its divisors is an integer number (2113551331).

Almost surely, 2^4227102661 is an apocalyptic number.

It is an amenable number.

4227102661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4227102661 is an equidigital number, since it uses as much as digits as its factorization.

4227102661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 4227102661 is about 65016.1723035123. The cubic root of 4227102661 is about 1616.8917004540.

Adding to 4227102661 its reverse (1662017224), we get a palindrome (5889119885).

The spelling of 4227102661 in words is "four billion, two hundred twenty-seven million, one hundred two thousand, six hundred sixty-one".