42212031 has 8 divisors (see below), whose sum is σ = 57054000. Its totient is φ = 27755712.

The previous prime is 42212017. The next prime is 42212033. The reversal of 42212031 is 13021224.

42212031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 42212031 - 2¹⁰ = 42211007 is a prime.

It is a super-2 number, since 2×42212031² = 3563711122289922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42212031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42212033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96156 + ... + 96593.

It is an arithmetic number, because the mean of its divisors is an integer number (7131750).

Almost surely, 2^42212031 is an apocalyptic number.

42212031 is a deficient number, since it is larger than the sum of its proper divisors (14841969).

42212031 is a wasteful number, since it uses less digits than its factorization.

42212031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192825.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 42212031 is about 6497.0786512093. The cubic root of 42212031 is about 348.1866237081.

Adding to 42212031 its reverse (13021224), we get a palindrome (55233255).

The spelling of 42212031 in words is "forty-two million, two hundred twelve thousand, thirty-one".