227224857861 has 6 divisors (see below), whose sum is σ = 328213683590. Its totient is φ = 151483238568.

The previous prime is 227224857851. The next prime is 227224857869. The reversal of 227224857861 is 168758422722.

It is a happy number.

227224857861 is a `hidden beast` number, since 2 + 2 + 7 + 2 + 2 + 4 + 8 + 578 + 61 = 666.

It can be written as a sum of positive squares in only one way, i.e., 214629284961 + 12595572900 = 463281^2 + 112230^2 .

It is not a de Polignac number, because 227224857861 - 2⁵ = 227224857829 is a prime.

It is a super-2 number, since 2×227224857861² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 227224857798 and 227224857807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227224857869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12623603206 + ... + 12623603223.

Almost surely, 2^227224857861 is an apocalyptic number.

It is an amenable number.

227224857861 is a deficient number, since it is larger than the sum of its proper divisors (100988825729).

227224857861 is a wasteful number, since it uses less digits than its factorization.

227224857861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25247206435 (or 25247206432 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 54.

The spelling of 227224857861 in words is "two hundred twenty-seven billion, two hundred twenty-four million, eight hundred fifty-seven thousand, eight hundred sixty-one".