47885412221 has 2 divisors, whose sum is σ = 47885412222. Its totient is φ = 47885412220.

The previous prime is 47885412217. The next prime is 47885412229. The reversal of 47885412221 is 12221458874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41774863321 + 6110548900 = 204389^2 + 78170^2 .

It is a cyclic number.

It is not a de Polignac number, because 47885412221 - 2² = 47885412217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47885412229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23942706110 + 23942706111.

It is an arithmetic number, because the mean of its divisors is an integer number (23942706111).

Almost surely, 2^47885412221 is an apocalyptic number.

It is an amenable number.

47885412221 is a deficient number, since it is larger than the sum of its proper divisors (1).

47885412221 is an equidigital number, since it uses as much as digits as its factorization.

47885412221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 286720, while the sum is 44.

The spelling of 47885412221 in words is "forty-seven billion, eight hundred eighty-five million, four hundred twelve thousand, two hundred twenty-one".