221360747445047 has 16 divisors (see below), whose sum is σ = 261780822412800. Its totient is φ = 183143626979040.

The previous prime is 221360747445017. The next prime is 221360747445059. The reversal of 221360747445047 is 740544747063122.

It is not a de Polignac number, because 221360747445047 - 2²⁴ = 221360730667831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221360747444983 and 221360747445001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221360747445017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152473229 + ... + 153918182.

It is an arithmetic number, because the mean of its divisors is an integer number (16361301400800).

Almost surely, 2^{221360747445047} is an apocalyptic number.

221360747445047 is a deficient number, since it is larger than the sum of its proper divisors (40420074967753).

221360747445047 is a wasteful number, since it uses less digits than its factorization.

221360747445047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306395006.

The product of its (nonzero) digits is 31610880, while the sum is 56.

The spelling of 221360747445047 in words is "two hundred twenty-one trillion, three hundred sixty billion, seven hundred forty-seven million, four hundred forty-five thousand, forty-seven".