221150265 has 32 divisors (see below), whose sum is σ = 404960256. Its totient is φ = 100954560.

The previous prime is 221150243. The next prime is 221150273. The reversal of 221150265 is 562051122.

It is a happy number.

It is not a de Polignac number, because 221150265 - 2⁵ = 221150233 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 121210 + ... + 123020.

It is an arithmetic number, because the mean of its divisors is an integer number (12655008).

Almost surely, 2^221150265 is an apocalyptic number.

It is an amenable number.

221150265 is a deficient number, since it is larger than the sum of its proper divisors (183809991).

221150265 is a wasteful number, since it uses less digits than its factorization.

221150265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 221150265 is about 14871.1218473927. The cubic root of 221150265 is about 604.7313562660.

The spelling of 221150265 in words is "two hundred twenty-one million, one hundred fifty thousand, two hundred sixty-five".