42212211 has 8 divisors (see below), whose sum is σ = 57123264. Its totient is φ = 27721320.

The previous prime is 42212189. The next prime is 42212237. The reversal of 42212211 is 11221224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42212211 - 2¹¹ = 42210163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42212011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104805 + ... + 105206.

It is an arithmetic number, because the mean of its divisors is an integer number (7140408).

Almost surely, 2^42212211 is an apocalyptic number.

42212211 is a deficient number, since it is larger than the sum of its proper divisors (14911053).

42212211 is a wasteful number, since it uses less digits than its factorization.

42212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210081.

The product of its digits is 64, while the sum is 15.

The square root of 42212211 is about 6497.0925035742. The cubic root of 42212211 is about 348.1871186184.

Adding to 42212211 its reverse (11221224), we get a palindrome (53433435).

The spelling of 42212211 in words is "forty-two million, two hundred twelve thousand, two hundred eleven".