42321412221 has 16 divisors (see below), whose sum is σ = 61561866240. Its totient is φ = 25647903920.

The previous prime is 42321412181. The next prime is 42321412249. The reversal of 42321412221 is 12221412324.

42321412221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42321412221 - 2¹⁹ = 42320887933 is a prime.

It is a super-2 number, since 2×42321412221² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42321412191 and 42321412200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42321410221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1073566 + ... + 1112288.

It is an arithmetic number, because the mean of its divisors is an integer number (3847616640).

Almost surely, 2^42321412221 is an apocalyptic number.

It is an amenable number.

42321412221 is a deficient number, since it is larger than the sum of its proper divisors (19240454019).

42321412221 is a wasteful number, since it uses less digits than its factorization.

42321412221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71856.

The product of its digits is 1536, while the sum is 24.

Adding to 42321412221 its reverse (12221412324), we get a palindrome (54542824545).

The spelling of 42321412221 in words is "forty-two billion, three hundred twenty-one million, four hundred twelve thousand, two hundred twenty-one".