42312221222 has 16 divisors (see below), whose sum is σ = 66909652992. Its totient is φ = 20038044360.

The previous prime is 42312221207. The next prime is 42312221243. The reversal of 42312221222 is 22212221324.

It is a congruent number.

It is an unprimeable number.

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, 7257248 + ... + 7263075.

It is an arithmetic number, because the mean of its divisors is an integer number (4181853312).

Almost surely, 2^42312221222 is an apocalyptic number.

42312221222 is a deficient number, since it is larger than the sum of its proper divisors (24597431770).

42312221222 is a wasteful number, since it uses less digits than its factorization.

42312221222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14520403.

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

Adding to 42312221222 its reverse (22212221324), we get a palindrome (64524442546).

The spelling of 42312221222 in words is "forty-two billion, three hundred twelve million, two hundred twenty-one thousand, two hundred twenty-two".