2225150221 has 12 divisors (see below), whose sum is σ = 2615130588. Its totient is φ = 1887604992.

The previous prime is 2225150219. The next prime is 2225150243. The reversal of 2225150221 is 1220515222.

It can be written as a sum of positive squares in 2 ways, for example, as 342805225 + 1882344996 = 18515^2 + 43386^2 .

It is not a de Polignac number, because 2225150221 - 2¹ = 2225150219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2225150192 and 2225150201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225150821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229326 + ... + 238831.

It is an arithmetic number, because the mean of its divisors is an integer number (217927549).

Almost surely, 2^2225150221 is an apocalyptic number.

It is an amenable number.

2225150221 is a deficient number, since it is larger than the sum of its proper divisors (389980367).

2225150221 is an equidigital number, since it uses as much as digits as its factorization.

2225150221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468268 (or 468261 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2225150221 is about 47171.4979728225. The cubic root of 2225150221 is about 1305.5287652358.

Adding to 2225150221 its reverse (1220515222), we get a palindrome (3445665443).

The spelling of 2225150221 in words is "two billion, two hundred twenty-five million, one hundred fifty thousand, two hundred twenty-one".