111662225 has 12 divisors (see below), whose sum is σ = 138657420. Its totient is φ = 89203200.

The previous prime is 111662207. The next prime is 111662227. The reversal of 111662225 is 522266111.

It can be written as a sum of positive squares in 6 ways, for example, as 169744 + 111492481 = 412^2 + 10559^2 .

It is not a de Polignac number, because 111662225 - 2²⁴ = 94885009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111662194 and 111662203.

It is not an unprimeable number, because it can be changed into a prime (111662227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17465 + ... + 22985.

It is an arithmetic number, because the mean of its divisors is an integer number (11554785).

Almost surely, 2^111662225 is an apocalyptic number.

It is an amenable number.

111662225 is a deficient number, since it is larger than the sum of its proper divisors (26995195).

111662225 is an equidigital number, since it uses as much as digits as its factorization.

111662225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340 (or 6335 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 111662225 is about 10567.0348253424. The cubic root of 111662225 is about 481.5433899996.

The spelling of 111662225 in words is "one hundred eleven million, six hundred sixty-two thousand, two hundred twenty-five".