4521222209 has 6 divisors (see below), whose sum is σ = 5259380994. Its totient is φ = 3875333280.

The previous prime is 4521222203. The next prime is 4521222253. The reversal of 4521222209 is 9022221254.

It can be written as a sum of positive squares in only one way, i.e., 3624040000 + 897182209 = 60200^2 + 29953^2 .

It is not a de Polignac number, because 4521222209 - 2¹² = 4521218113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4521222203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46134872 + ... + 46134969.

It is an arithmetic number, because the mean of its divisors is an integer number (876563499).

Almost surely, 2^4521222209 is an apocalyptic number.

4521222209 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

4521222209 is a deficient number, since it is larger than the sum of its proper divisors (738158785).

4521222209 is an equidigital number, since it uses as much as digits as its factorization.

4521222209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92269855 (or 92269848 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 4521222209 is about 67240.0342727456. The cubic root of 4521222209 is about 1653.5548955650.

The spelling of 4521222209 in words is "four billion, five hundred twenty-one million, two hundred twenty-two thousand, two hundred nine".