42221855232 has 150 divisors (see below), whose sum is σ = 126146141253. Its totient is φ = 14060003328.

The previous prime is 42221855219. The next prime is 42221855237. The reversal of 42221855232 is 23255812224.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

42221855232 is a `hidden beast` number, since 42 + 22 + 18 + 552 + 32 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 40584519936 + 1637335296 = 201456^2 + 40464^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=145296.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (42221855237) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 41844744 + ... + 41845752.

Almost surely, 2^42221855232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42221855232

42221855232 is an abundant number, since it is smaller than the sum of its proper divisors (83924286021).

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

42221855232 is an frugal number, since it uses more digits than its factorization.

42221855232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048 (or 1014 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The spelling of 42221855232 in words is "forty-two billion, two hundred twenty-one million, eight hundred fifty-five thousand, two hundred thirty-two".