2242001721 has 16 divisors (see below), whose sum is σ = 3020865536. Its totient is φ = 1478927376.

The previous prime is 2242001669. The next prime is 2242001731. The reversal of 2242001721 is 1271002422.

It is not a de Polignac number, because 2242001721 - 2¹⁴ = 2241985337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2242001731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511686 + ... + 516048.

It is an arithmetic number, because the mean of its divisors is an integer number (188804096).

Almost surely, 2^2242001721 is an apocalyptic number.

It is an amenable number.

2242001721 is a deficient number, since it is larger than the sum of its proper divisors (778863815).

2242001721 is a wasteful number, since it uses less digits than its factorization.

2242001721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6132.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2242001721 is about 47349.7805802730. The cubic root of 2242001721 is about 1308.8161557824.

The spelling of 2242001721 in words is "two billion, two hundred forty-two million, one thousand, seven hundred twenty-one".