1066226225 has 12 divisors (see below), whose sum is σ = 1357854684. Its totient is φ = 829926720.

The previous prime is 1066226221. The next prime is 1066226257. The reversal of 1066226225 is 5226226601.

It can be written as a sum of positive squares in 6 ways, for example, as 44528929 + 1021697296 = 6673^2 + 31964^2 .

It is not a de Polignac number, because 1066226225 - 2² = 1066226221 is a prime.

It is a super-2 number, since 2×1066226225² = 2273676725755501250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1066226191 and 1066226200.

It is not an unprimeable number, because it can be changed into a prime (1066226221) 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, 575414 + ... + 577263.

It is an arithmetic number, because the mean of its divisors is an integer number (113154557).

Almost surely, 2^1066226225 is an apocalyptic number.

It is an amenable number.

1066226225 is a deficient number, since it is larger than the sum of its proper divisors (291628459).

1066226225 is a wasteful number, since it uses less digits than its factorization.

1066226225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152724 (or 1152719 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1066226225 is about 32653.1196825051. The cubic root of 1066226225 is about 1021.6052594126.

The spelling of 1066226225 in words is "one billion, sixty-six million, two hundred twenty-six thousand, two hundred twenty-five".