42241211 has 2 divisors, whose sum is σ = 42241212. Its totient is φ = 42241210.

The previous prime is 42241207. The next prime is 42241229. The reversal of 42241211 is 11214224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42241211 - 2² = 42241207 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42241211.

It is not a weakly prime, because it can be changed into another prime (42241411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21120605 + 21120606.

It is an arithmetic number, because the mean of its divisors is an integer number (21120606).

Almost surely, 2^42241211 is an apocalyptic number.

42241211 is a deficient number, since it is larger than the sum of its proper divisors (1).

42241211 is an equidigital number, since it uses as much as digits as its factorization.

42241211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128, while the sum is 17.

The square root of 42241211 is about 6499.3238879133. The cubic root of 42241211 is about 348.2668357962.

Adding to 42241211 its reverse (11214224), we get a palindrome (53455435).

The spelling of 42241211 in words is "forty-two million, two hundred forty-one thousand, two hundred eleven".