227440105421 has 2 divisors, whose sum is σ = 227440105422. Its totient is φ = 227440105420.

The previous prime is 227440105391. The next prime is 227440105429. The reversal of 227440105421 is 124501044722.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227396413321 + 43692100 = 476861^2 + 6610^2 .

It is a cyclic number.

It is not a de Polignac number, because 227440105421 - 2¹⁸ = 227439843277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227440105429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113720052710 + 113720052711.

It is an arithmetic number, because the mean of its divisors is an integer number (113720052711).

Almost surely, 2^227440105421 is an apocalyptic number.

It is an amenable number.

227440105421 is a deficient number, since it is larger than the sum of its proper divisors (1).

227440105421 is an equidigital number, since it uses as much as digits as its factorization.

227440105421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17920, while the sum is 32.

The spelling of 227440105421 in words is "two hundred twenty-seven billion, four hundred forty million, one hundred five thousand, four hundred twenty-one".