227110386721 has 21 divisors (see below), whose sum is σ = 243818109669. Its totient is φ = 211547334144.

The previous prime is 227110386707. The next prime is 227110386781. The reversal of 227110386721 is 127683011722.

The square root of 227110386721 is 476561.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 10 ways, for example, as 102247097121 + 124863289600 = 319761^2 + 353360^2 .

It is not a de Polignac number, because 227110386721 - 2¹³ = 227110378529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227110386781) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 2341344145 + ... + 2341344241.

Almost surely, 2^227110386721 is an apocalyptic number.

227110386721 is the 476561-st square number.

227110386721 is the 238281-st centered octagonal number.

It is an amenable number.

227110386721 is a deficient number, since it is larger than the sum of its proper divisors (16707722948).

227110386721 is an frugal number, since it uses more digits than its factorization.

227110386721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 227110386721 in words is "two hundred twenty-seven billion, one hundred ten million, three hundred eighty-six thousand, seven hundred twenty-one".