42321221223 has 4 divisors (see below), whose sum is σ = 56428294968. Its totient is φ = 28214147480.

The previous prime is 42321221197. The next prime is 42321221237. The reversal of 42321221223 is 32212212324.

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

It is a cyclic number.

It is not a de Polignac number, because 42321221223 - 2⁸ = 42321220967 is a prime.

It is a super-2 number, since 2×42321221223² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42321221193 and 42321221202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42321221123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7053536868 + ... + 7053536873.

It is an arithmetic number, because the mean of its divisors is an integer number (14107073742).

Almost surely, 2^42321221223 is an apocalyptic number.

42321221223 is a deficient number, since it is larger than the sum of its proper divisors (14107073745).

42321221223 is a wasteful number, since it uses less digits than its factorization.

42321221223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14107073744.

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

Adding to 42321221223 its reverse (32212212324), we get a palindrome (74533433547).

The spelling of 42321221223 in words is "forty-two billion, three hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-three".