2141222065 has 8 divisors (see below), whose sum is σ = 2569867560. Its totient is φ = 1712710272.

The previous prime is 2141222033. The next prime is 2141222071. The reversal of 2141222065 is 5602221412.

It can be written as a sum of positive squares in 4 ways, for example, as 994519296 + 1146702769 = 31536^2 + 33863^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2141222065 - 2⁵ = 2141222033 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6051 + ... + 65719.

It is an arithmetic number, because the mean of its divisors is an integer number (321233445).

Almost surely, 2^2141222065 is an apocalyptic number.

It is an amenable number.

2141222065 is a deficient number, since it is larger than the sum of its proper divisors (428645495).

2141222065 is an equidigital number, since it uses as much as digits as its factorization.

2141222065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66851.

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

The square root of 2141222065 is about 46273.3407590159. The cubic root of 2141222065 is about 1288.9039956681.

Adding to 2141222065 its reverse (5602221412), we get a palindrome (7743443477).

The spelling of 2141222065 in words is "two billion, one hundred forty-one million, two hundred twenty-two thousand, sixty-five".