227430502021 has 2 divisors, whose sum is σ = 227430502022. Its totient is φ = 227430502020.

The previous prime is 227430501979. The next prime is 227430502027. The reversal of 227430502021 is 120205034722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218753579521 + 8676922500 = 467711^2 + 93150^2 .

It is a cyclic number.

It is not a de Polignac number, because 227430502021 - 2²¹ = 227428404869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227430502027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113715251010 + 113715251011.

It is an arithmetic number, because the mean of its divisors is an integer number (113715251011).

Almost surely, 2^227430502021 is an apocalyptic number.

It is an amenable number.

227430502021 is a deficient number, since it is larger than the sum of its proper divisors (1).

227430502021 is an equidigital number, since it uses as much as digits as its factorization.

227430502021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

Adding to 227430502021 its reverse (120205034722), we get a palindrome (347635536743).

The spelling of 227430502021 in words is "two hundred twenty-seven billion, four hundred thirty million, five hundred two thousand, twenty-one".