42124211 has 4 divisors (see below), whose sum is σ = 43576800. Its totient is φ = 40671624.

The previous prime is 42124207. The next prime is 42124213. The reversal of 42124211 is 11242124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42124211 - 2² = 42124207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42124211.

It is not an unprimeable number, because it can be changed into a prime (42124213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726251 + ... + 726308.

It is an arithmetic number, because the mean of its divisors is an integer number (10894200).

Almost surely, 2^42124211 is an apocalyptic number.

42124211 is a deficient number, since it is larger than the sum of its proper divisors (1452589).

42124211 is a wasteful number, since it uses less digits than its factorization.

42124211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452588.

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

The square root of 42124211 is about 6490.3167103000. The cubic root of 42124211 is about 347.9449944990.

Adding to 42124211 its reverse (11242124), we get a palindrome (53366335).

The spelling of 42124211 in words is "forty-two million, one hundred twenty-four thousand, two hundred eleven".