42214241261 has 2 divisors, whose sum is σ = 42214241262. Its totient is φ = 42214241260.

The previous prime is 42214241219. The next prime is 42214241357. The reversal of 42214241261 is 16214241224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35336856361 + 6877384900 = 187981^2 + 82930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42214241261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42214247261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21107120630 + 21107120631.

It is an arithmetic number, because the mean of its divisors is an integer number (21107120631).

Almost surely, 2^42214241261 is an apocalyptic number.

It is an amenable number.

42214241261 is a deficient number, since it is larger than the sum of its proper divisors (1).

42214241261 is an equidigital number, since it uses as much as digits as its factorization.

42214241261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 29.

Adding to 42214241261 its reverse (16214241224), we get a palindrome (58428482485).

The spelling of 42214241261 in words is "forty-two billion, two hundred fourteen million, two hundred forty-one thousand, two hundred sixty-one".