4102210661 has 4 divisors (see below), whose sum is σ = 4119232524. Its totient is φ = 4085188800.

The previous prime is 4102210649. The next prime is 4102210663. The reversal of 4102210661 is 1660122014.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1282069636 + 2820141025 = 35806^2 + 53105^2 .

It is a cyclic number.

It is not a de Polignac number, because 4102210661 - 2¹⁸ = 4101948517 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102210663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8510570 + ... + 8511051.

It is an arithmetic number, because the mean of its divisors is an integer number (1029808131).

Almost surely, 2^4102210661 is an apocalyptic number.

It is an amenable number.

4102210661 is a deficient number, since it is larger than the sum of its proper divisors (17021863).

4102210661 is a wasteful number, since it uses less digits than its factorization.

4102210661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17021862.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 4102210661 is about 64048.5024102828. The cubic root of 4102210661 is about 1600.8082714348.

Adding to 4102210661 its reverse (1660122014), we get a palindrome (5762332675).

The spelling of 4102210661 in words is "four billion, one hundred two million, two hundred ten thousand, six hundred sixty-one".