2242721515 has 16 divisors (see below), whose sum is σ = 2926595232. Its totient is φ = 1642996224.

The previous prime is 2242721479. The next prime is 2242721521. The reversal of 2242721515 is 5151272422.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2242721515 - 2¹³ = 2242713323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353409 + ... + 359698.

It is an arithmetic number, because the mean of its divisors is an integer number (182912202).

Almost surely, 2^2242721515 is an apocalyptic number.

2242721515 is a deficient number, since it is larger than the sum of its proper divisors (683873717).

2242721515 is a wasteful number, since it uses less digits than its factorization.

2242721515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 713166.

The product of its digits is 11200, while the sum is 31.

The square root of 2242721515 is about 47357.3807869481. The cubic root of 2242721515 is about 1308.9562058111.

Adding to 2242721515 its reverse (5151272422), we get a palindrome (7393993937).

The spelling of 2242721515 in words is "two billion, two hundred forty-two million, seven hundred twenty-one thousand, five hundred fifteen".