42120222232 has 16 divisors (see below), whose sum is σ = 86155000200. Its totient is φ = 19145555520.

The previous prime is 42120222217. The next prime is 42120222233. The reversal of 42120222232 is 23222202124.

42120222232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42120222232² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42120222233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239319357 + ... + 239319532.

Almost surely, 2^42120222232 is an apocalyptic number.

It is an amenable number.

42120222232 is an abundant number, since it is smaller than the sum of its proper divisors (44034777968).

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

42120222232 is a wasteful number, since it uses less digits than its factorization.

42120222232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478638906 (or 478638902 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 42120222232 its reverse (23222202124), we get a palindrome (65342424356).

The spelling of 42120222232 in words is "forty-two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred thirty-two".