2141211481 has 2 divisors, whose sum is σ = 2141211482. Its totient is φ = 2141211480.

The previous prime is 2141211469. The next prime is 2141211493. The reversal of 2141211481 is 1841121412.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2141211469) and next prime (2141211493).

It can be written as a sum of positive squares in only one way, i.e., 2138600025 + 2611456 = 46245^2 + 1616^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2141211481 is a prime.

It is a super-2 number, since 2×2141211481² = 9169573212732426722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2141211451) 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 as a sum of consecutive naturals, namely, 1070605740 + 1070605741.

It is an arithmetic number, because the mean of its divisors is an integer number (1070605741).

Almost surely, 2^2141211481 is an apocalyptic number.

It is an amenable number.

2141211481 is a deficient number, since it is larger than the sum of its proper divisors (1).

2141211481 is an equidigital number, since it uses as much as digits as its factorization.

2141211481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512, while the sum is 25.

The square root of 2141211481 is about 46273.2263949684. The cubic root of 2141211481 is about 1288.9018719926.

Adding to 2141211481 its reverse (1841121412), we get a palindrome (3982332893).

The spelling of 2141211481 in words is "two billion, one hundred forty-one million, two hundred eleven thousand, four hundred eighty-one".