42221323122 has 16 divisors (see below), whose sum is σ = 92119250592. Its totient is φ = 12794340320.

The previous prime is 42221323103. The next prime is 42221323127. The reversal of 42221323122 is 22132312224.

It is a junction number, because it is equal to n+sod(n) for n = 42221323092 and 42221323101.

It is not an unprimeable number, because it can be changed into a prime (42221323127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319858443 + ... + 319858574.

It is an arithmetic number, because the mean of its divisors is an integer number (5757453162).

Almost surely, 2^42221323122 is an apocalyptic number.

42221323122 is an abundant number, since it is smaller than the sum of its proper divisors (49897927470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42221323122 is a wasteful number, since it uses less digits than its factorization.

42221323122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639717033.

The product of its digits is 2304, while the sum is 24.

Adding to 42221323122 its reverse (22132312224), we get a palindrome (64353635346).

The spelling of 42221323122 in words is "forty-two billion, two hundred twenty-one million, three hundred twenty-three thousand, one hundred twenty-two".