2111322225 has 24 divisors (see below), whose sum is σ = 3696058080. Its totient is φ = 1059800320.

The previous prime is 2111322223. The next prime is 2111322229. The reversal of 2111322225 is 5222231112.

It is not a de Polignac number, because 2111322225 - 2¹ = 2111322223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111322221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 826695 + ... + 829244.

It is an arithmetic number, because the mean of its divisors is an integer number (154002420).

Almost surely, 2^2111322225 is an apocalyptic number.

2111322225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2111322225 is a deficient number, since it is larger than the sum of its proper divisors (1584735855).

2111322225 is a wasteful number, since it uses less digits than its factorization.

2111322225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655969 (or 1655964 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 2111322225 is about 45949.1264878888. The cubic root of 2111322225 is about 1282.8764706866.

Adding to 2111322225 its reverse (5222231112), we get a palindrome (7333553337).

The spelling of 2111322225 in words is "two billion, one hundred eleven million, three hundred twenty-two thousand, two hundred twenty-five".