42242221231 has 8 divisors (see below), whose sum is σ = 51116637600. Its totient is φ = 34077758208.

The previous prime is 42242221213. The next prime is 42242221253. The reversal of 42242221231 is 13212224224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42242221231 - 2⁹ = 42242220719 is a prime.

It is a super-2 number, since 2×42242221231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42242221196 and 42242221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242221201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177488206 + ... + 177488443.

It is an arithmetic number, because the mean of its divisors is an integer number (6389579700).

Almost surely, 2^42242221231 is an apocalyptic number.

42242221231 is a deficient number, since it is larger than the sum of its proper divisors (8874416369).

42242221231 is a wasteful number, since it uses less digits than its factorization.

42242221231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354976673.

The product of its digits is 3072, while the sum is 25.

Adding to 42242221231 its reverse (13212224224), we get a palindrome (55454445455).

The spelling of 42242221231 in words is "forty-two billion, two hundred forty-two million, two hundred twenty-one thousand, two hundred thirty-one".