2384222721 has 16 divisors (see below), whose sum is σ = 3257100288. Its totient is φ = 1550632400.

The previous prime is 2384222717. The next prime is 2384222723. The reversal of 2384222721 is 1272224832.

It is a cyclic number.

It is not a de Polignac number, because 2384222721 - 2² = 2384222717 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2384222723) 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, 16666 + ... + 71036.

It is an arithmetic number, because the mean of its divisors is an integer number (203568768).

Almost surely, 2^2384222721 is an apocalyptic number.

It is an amenable number.

2384222721 is a deficient number, since it is larger than the sum of its proper divisors (872877567).

2384222721 is a wasteful number, since it uses less digits than its factorization.

2384222721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54732.

The product of its digits is 21504, while the sum is 33.

The square root of 2384222721 is about 48828.5031615756. The cubic root of 2384222721 is about 1335.9256059024.

The spelling of 2384222721 in words is "two billion, three hundred eighty-four million, two hundred twenty-two thousand, seven hundred twenty-one".