227107021 has 2 divisors, whose sum is σ = 227107022. Its totient is φ = 227107020.

The previous prime is 227106983. The next prime is 227107031. The reversal of 227107021 is 120701722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 222755625 + 4351396 = 14925^2 + 2086^2 .

It is a cyclic number.

It is not a de Polignac number, because 227107021 - 2¹⁷ = 226975949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 227106983 and 227107001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227107031) by changing a digit.

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 as a sum of consecutive naturals, namely, 113553510 + 113553511.

It is an arithmetic number, because the mean of its divisors is an integer number (113553511).

Almost surely, 2^227107021 is an apocalyptic number.

It is an amenable number.

227107021 is a deficient number, since it is larger than the sum of its proper divisors (1).

227107021 is an equidigital number, since it uses as much as digits as its factorization.

227107021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 227107021 is about 15070.0703714349. The cubic root of 227107021 is about 610.1128708095.

Adding to 227107021 its reverse (120701722), we get a palindrome (347808743).

The spelling of 227107021 in words is "two hundred twenty-seven million, one hundred seven thousand, twenty-one".