42221213331 has 32 divisors (see below), whose sum is σ = 63007338240. Its totient is φ = 24926092800.

The previous prime is 42221213327. The next prime is 42221213357. The reversal of 42221213331 is 13331212224.

It is not a de Polignac number, because 42221213331 - 2² = 42221213327 is a prime.

It is a super-2 number, since 2×42221213331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42221213371) 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 31 ways as a sum of consecutive naturals, for example, 867951 + ... + 915303.

It is an arithmetic number, because the mean of its divisors is an integer number (1968979320).

Almost surely, 2^42221213331 is an apocalyptic number.

42221213331 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

42221213331 is a deficient number, since it is larger than the sum of its proper divisors (20786124909).

42221213331 is a wasteful number, since it uses less digits than its factorization.

42221213331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48067.

The product of its digits is 1728, while the sum is 24.

Adding to 42221213331 its reverse (13331212224), we get a palindrome (55552425555).

It can be divided in two parts, 42221 and 213331, that added together give a palindrome (255552).

The spelling of 42221213331 in words is "forty-two billion, two hundred twenty-one million, two hundred thirteen thousand, three hundred thirty-one".