2112255125 has 16 divisors (see below), whose sum is σ = 2638038000. Its totient is φ = 1688558400.

The previous prime is 2112255031. The next prime is 2112255133. The reversal of 2112255125 is 5215522112.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1144671889 + 967583236 = 33833^2 + 31106^2 .

It is not a de Polignac number, because 2112255125 - 2¹⁰ = 2112254101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2112255094 and 2112255103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188171 + ... + 199079.

It is an arithmetic number, because the mean of its divisors is an integer number (164877375).

Almost surely, 2^2112255125 is an apocalyptic number.

2112255125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2112255125 is a deficient number, since it is larger than the sum of its proper divisors (525782875).

2112255125 is a wasteful number, since it uses less digits than its factorization.

2112255125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12473 (or 12463 counting only the distinct ones).

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

The square root of 2112255125 is about 45959.2768111075. The cubic root of 2112255125 is about 1283.0653916731.

Adding to 2112255125 its reverse (5215522112), we get a palindrome (7327777237).

The spelling of 2112255125 in words is "two billion, one hundred twelve million, two hundred fifty-five thousand, one hundred twenty-five".