4101220465 has 4 divisors (see below), whose sum is σ = 4921464564. Its totient is φ = 3280976368.

The previous prime is 4101220463. The next prime is 4101220477. The reversal of 4101220465 is 5640221014.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5640221014 = 2 ⋅2820110507.

It can be written as a sum of positive squares in 2 ways, for example, as 856323169 + 3244897296 = 29263^2 + 56964^2 .

It is a cyclic number.

It is not a de Polignac number, because 4101220465 - 2¹ = 4101220463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4101220463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410122042 + ... + 410122051.

It is an arithmetic number, because the mean of its divisors is an integer number (1230366141).

Almost surely, 2^4101220465 is an apocalyptic number.

It is an amenable number.

4101220465 is a deficient number, since it is larger than the sum of its proper divisors (820244099).

4101220465 is an equidigital number, since it uses as much as digits as its factorization.

4101220465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820244098.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 4101220465 is about 64040.7718957228. The cubic root of 4101220465 is about 1600.6794594653.

Adding to 4101220465 its reverse (5640221014), we get a palindrome (9741441479).

The spelling of 4101220465 in words is "four billion, one hundred one million, two hundred twenty thousand, four hundred sixty-five".