227401240721 has 4 divisors (see below), whose sum is σ = 232689641712. Its totient is φ = 222112839732.

The previous prime is 227401240687. The next prime is 227401240757. The reversal of 227401240721 is 127042104722.

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 not a de Polignac number, because 227401240721 - 2¹⁰ = 227401239697 is a prime.

It is a super-2 number, since 2×227401240721² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (227401240771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2644200431 + ... + 2644200516.

It is an arithmetic number, because the mean of its divisors is an integer number (58172410428).

Almost surely, 2^227401240721 is an apocalyptic number.

It is an amenable number.

227401240721 is a deficient number, since it is larger than the sum of its proper divisors (5288400991).

227401240721 is an equidigital number, since it uses as much as digits as its factorization.

227401240721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5288400990.

The product of its (nonzero) digits is 12544, while the sum is 32.

The spelling of 227401240721 in words is "two hundred twenty-seven billion, four hundred one million, two hundred forty thousand, seven hundred twenty-one".