2240121571 has 2 divisors, whose sum is σ = 2240121572. Its totient is φ = 2240121570.

The previous prime is 2240121529. The next prime is 2240121601. The reversal of 2240121571 is 1751210422.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2240121571 - 2²¹ = 2238024419 is a prime.

It is not a weakly prime, because it can be changed into another prime (2240121511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1120060785 + 1120060786.

It is an arithmetic number, because the mean of its divisors is an integer number (1120060786).

Almost surely, 2^2240121571 is an apocalyptic number.

2240121571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2240121571 is an equidigital number, since it uses as much as digits as its factorization.

2240121571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2240121571 is about 47329.9225754702. The cubic root of 2240121571 is about 1308.4501942902.

Adding to 2240121571 its reverse (1751210422), we get a palindrome (3991331993).

The spelling of 2240121571 in words is "two billion, two hundred forty million, one hundred twenty-one thousand, five hundred seventy-one".