227317540421 has 4 divisors (see below), whose sum is σ = 227383109952. Its totient is φ = 227251970892.

The previous prime is 227317540393. The next prime is 227317540451. The reversal of 227317540421 is 124045713722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-227317540421 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (227317540451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32779565 + ... + 32786498.

It is an arithmetic number, because the mean of its divisors is an integer number (56845777488).

Almost surely, 2^227317540421 is an apocalyptic number.

It is an amenable number.

227317540421 is a deficient number, since it is larger than the sum of its proper divisors (65569531).

227317540421 is an equidigital number, since it uses as much as digits as its factorization.

227317540421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65569530.

The product of its (nonzero) digits is 94080, while the sum is 38.

The spelling of 227317540421 in words is "two hundred twenty-seven billion, three hundred seventeen million, five hundred forty thousand, four hundred twenty-one".