227056021081261 has 2 divisors, whose sum is σ = 227056021081262. Its totient is φ = 227056021081260.

The previous prime is 227056021081237. The next prime is 227056021081343. The reversal of 227056021081261 is 162180120650722.

227056021081261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186718724224036 + 40337296857225 = 13664506^2 + 6351165^2 .

It is a cyclic number.

It is not a de Polignac number, because 227056021081261 - 2¹³ = 227056021073069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227056021081661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113528010540630 + 113528010540631.

It is an arithmetic number, because the mean of its divisors is an integer number (113528010540631).

Almost surely, 2^{227056021081261} is an apocalyptic number.

It is an amenable number.

227056021081261 is a deficient number, since it is larger than the sum of its proper divisors (1).

227056021081261 is an equidigital number, since it uses as much as digits as its factorization.

227056021081261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 43.

The spelling of 227056021081261 in words is "two hundred twenty-seven trillion, fifty-six billion, twenty-one million, eighty-one thousand, two hundred sixty-one".