227244477213 has 60 divisors (see below), whose sum is σ = 389208308148. Its totient is φ = 131616576000.

The previous prime is 227244477197. The next prime is 227244477221. The reversal of 227244477213 is 312774442722.

It can be written as a sum of positive squares in 6 ways, for example, as 9583039449 + 217661437764 = 97893^2 + 466542^2 .

It is not a de Polignac number, because 227244477213 - 2⁴ = 227244477197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227244477913) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 255538 + ... + 720963.

Almost surely, 2^227244477213 is an apocalyptic number.

It is an amenable number.

227244477213 is a deficient number, since it is larger than the sum of its proper divisors (161963830935).

227244477213 is a wasteful number, since it uses less digits than its factorization.

227244477213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 976556 (or 976534 counting only the distinct ones).

The product of its digits is 1053696, while the sum is 45.

The spelling of 227244477213 in words is "two hundred twenty-seven billion, two hundred forty-four million, four hundred seventy-seven thousand, two hundred thirteen".