42211211 has 16 divisors (see below), whose sum is σ = 50155200. Its totient is φ = 34758528.

The previous prime is 42211171. The next prime is 42211219. The reversal of 42211211 is 11211224.

It is a happy number.

It is not a de Polignac number, because 42211211 - 2¹⁴ = 42194827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42211219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54221 + ... + 54993.

It is an arithmetic number, because the mean of its divisors is an integer number (3134700).

Almost surely, 2^42211211 is an apocalyptic number.

42211211 is a deficient number, since it is larger than the sum of its proper divisors (7943989).

42211211 is a wasteful number, since it uses less digits than its factorization.

42211211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078.

The product of its digits is 32, while the sum is 14.

The square root of 42211211 is about 6497.0155456178. The cubic root of 42211211 is about 348.1843690991.

Adding to 42211211 its reverse (11211224), we get a palindrome (53422435).

The spelling of 42211211 in words is "forty-two million, two hundred eleven thousand, two hundred eleven".