2215151225 has 24 divisors (see below), whose sum is σ = 3247440960. Its totient is φ = 1466579520.

The previous prime is 2215151209. The next prime is 2215151251. The reversal of 2215151225 is 5221515122.

It is a happy number.

It is not a de Polignac number, because 2215151225 - 2⁴ = 2215151209 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2215151194 and 2215151203.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 213167 + ... + 223316.

It is an arithmetic number, because the mean of its divisors is an integer number (135310040).

Almost surely, 2^2215151225 is an apocalyptic number.

2215151225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2215151225 is a deficient number, since it is larger than the sum of its proper divisors (1032289735).

2215151225 is a wasteful number, since it uses less digits than its factorization.

2215151225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436529 (or 436524 counting only the distinct ones).

The product of its digits is 2000, while the sum is 26.

The square root of 2215151225 is about 47065.3930717677. The cubic root of 2215151225 is about 1303.5703088321.

Adding to 2215151225 its reverse (5221515122), we get a palindrome (7436666347).

The spelling of 2215151225 in words is "two billion, two hundred fifteen million, one hundred fifty-one thousand, two hundred twenty-five".