2116225 has 6 divisors (see below), whose sum is σ = 2624150. Its totient is φ = 1692960.

The previous prime is 2116199. The next prime is 2116291. The reversal of 2116225 is 5226112.

It can be written as a sum of positive squares in 3 ways, for example, as 7921 + 2108304 = 89^2 + 1452^2 .

It is not a de Polignac number, because 2116225 - 2⁷ = 2116097 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42300 + ... + 42349.

2^2116225 is an apocalyptic number.

2116225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2116225 is a deficient number, since it is larger than the sum of its proper divisors (507925).

2116225 is an equidigital number, since it uses as much as digits as its factorization.

2116225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84659 (or 84654 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 2116225 is about 1454.7250599340. The cubic root of 2116225 is about 128.3868707117.

It can be divided in two parts, 2116 and 225, that multiplied together give a square (476100 = 690²).

The spelling of 2116225 in words is "two million, one hundred sixteen thousand, two hundred twenty-five".