2202121225 has 12 divisors (see below), whose sum is σ = 2731904140. Its totient is φ = 1760875200.

The previous prime is 2202121211. The next prime is 2202121241. The reversal of 2202121225 is 5221212022.

It can be written as a sum of positive squares in 6 ways, for example, as 293916736 + 1908204489 = 17144^2 + 43683^2 .

It is not a de Polignac number, because 2202121225 - 2³¹ = 54637577 is a prime.

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 11 ways as a sum of consecutive naturals, for example, 37315 + ... + 76135.

Almost surely, 2^2202121225 is an apocalyptic number.

2202121225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2202121225 is a deficient number, since it is larger than the sum of its proper divisors (529782915).

2202121225 is a wasteful number, since it uses less digits than its factorization.

2202121225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41100 (or 41095 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 2202121225 is about 46926.7644846733. The cubic root of 2202121225 is about 1301.0093197119.

Adding to 2202121225 its reverse (5221212022), we get a palindrome (7423333247).

The spelling of 2202121225 in words is "two billion, two hundred two million, one hundred twenty-one thousand, two hundred twenty-five".