227121825 has 24 divisors (see below), whose sum is σ = 429153088. Its totient is φ = 103826880.

The previous prime is 227121787. The next prime is 227121863. The reversal of 227121825 is 528121722.

It is an interprime number because it is at equal distance from previous prime (227121787) and next prime (227121863).

It is not a de Polignac number, because 227121825 - 2¹³ = 227113633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 227121792 and 227121801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215782 + ... + 216831.

Almost surely, 2^227121825 is an apocalyptic number.

227121825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

227121825 is a deficient number, since it is larger than the sum of its proper divisors (202031263).

227121825 is a wasteful number, since it uses less digits than its factorization.

227121825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432633 (or 432628 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 227121825 is about 15070.5615356562. The cubic root of 227121825 is about 610.1261272832.

The spelling of 227121825 in words is "two hundred twenty-seven million, one hundred twenty-one thousand, eight hundred twenty-five".