42212141 has 4 divisors (see below), whose sum is σ = 42307872. Its totient is φ = 42116412.

The previous prime is 42212113. The next prime is 42212143. The reversal of 42212141 is 14121224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42212141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42212143) 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 3 ways as a sum of consecutive naturals, for example, 47201 + ... + 48086.

It is an arithmetic number, because the mean of its divisors is an integer number (10576968).

Almost surely, 2^42212141 is an apocalyptic number.

It is an amenable number.

42212141 is a deficient number, since it is larger than the sum of its proper divisors (95731).

42212141 is an equidigital number, since it uses as much as digits as its factorization.

42212141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95730.

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

The square root of 42212141 is about 6497.0871165469. The cubic root of 42212141 is about 348.1869261534.

Adding to 42212141 its reverse (14121224), we get a palindrome (56333365).

The spelling of 42212141 in words is "forty-two million, two hundred twelve thousand, one hundred forty-one".