42221303471 has 2 divisors, whose sum is σ = 42221303472. Its totient is φ = 42221303470.

The previous prime is 42221303437. The next prime is 42221303561. The reversal of 42221303471 is 17430312224.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42221303471 is a prime.

It is a super-3 number, since 3×42221303471³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42221393471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21110651735 + 21110651736.

It is an arithmetic number, because the mean of its divisors is an integer number (21110651736).

Almost surely, 2^42221303471 is an apocalyptic number.

42221303471 is a deficient number, since it is larger than the sum of its proper divisors (1).

42221303471 is an equidigital number, since it uses as much as digits as its factorization.

42221303471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 29.

Adding to 42221303471 its reverse (17430312224), we get a palindrome (59651615695).

The spelling of 42221303471 in words is "forty-two billion, two hundred twenty-one million, three hundred three thousand, four hundred seventy-one".