42210212342 has 4 divisors (see below), whose sum is σ = 63315318516. Its totient is φ = 21105106170.

The previous prime is 42210212263. The next prime is 42210212347. The reversal of 42210212342 is 24321201224.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42210212347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10552553084 + ... + 10552553087.

It is an arithmetic number, because the mean of its divisors is an integer number (15828829629).

Almost surely, 2^42210212342 is an apocalyptic number.

42210212342 is a deficient number, since it is larger than the sum of its proper divisors (21105106174).

42210212342 is a wasteful number, since it uses less digits than its factorization.

42210212342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21105106173.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 42210212342 its reverse (24321201224), we get a palindrome (66531413566).

The spelling of 42210212342 in words is "forty-two billion, two hundred ten million, two hundred twelve thousand, three hundred forty-two".