2214221329 has 4 divisors (see below), whose sum is σ = 2214604980. Its totient is φ = 2213837680.

The previous prime is 2214221309. The next prime is 2214221351. The reversal of 2214221329 is 9231224122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9231224122 = 2 ⋅4615612061.

It can be written as a sum of positive squares in 2 ways, for example, as 1027074304 + 1187147025 = 32048^2 + 34455^2 .

It is a cyclic number.

It is not a de Polignac number, because 2214221329 - 2⁹ = 2214220817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2214221297 and 2214221306.

It is not an unprimeable number, because it can be changed into a prime (2214221309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183034 + ... + 194755.

It is an arithmetic number, because the mean of its divisors is an integer number (553651245).

Almost surely, 2^2214221329 is an apocalyptic number.

It is an amenable number.

2214221329 is a deficient number, since it is larger than the sum of its proper divisors (383651).

2214221329 is an equidigital number, since it uses as much as digits as its factorization.

2214221329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383650.

The product of its digits is 3456, while the sum is 28.

The square root of 2214221329 is about 47055.5132689040. The cubic root of 2214221329 is about 1303.3878751661.

The spelling of 2214221329 in words is "two billion, two hundred fourteen million, two hundred twenty-one thousand, three hundred twenty-nine".