42054133221 has 12 divisors (see below), whose sum is σ = 61774433760. Its totient is φ = 27560900520.

The previous prime is 42054133217. The next prime is 42054133237. The reversal of 42054133221 is 12233145024.

42054133221 is a `hidden beast` number, since 4 + 20 + 5 + 413 + 3 + 221 = 666.

It is not a de Polignac number, because 42054133221 - 2² = 42054133217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42054133291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39598465 + ... + 39599526.

It is an arithmetic number, because the mean of its divisors is an integer number (5147869480).

Almost surely, 2^42054133221 is an apocalyptic number.

It is an amenable number.

42054133221 is a deficient number, since it is larger than the sum of its proper divisors (19720300539).

42054133221 is a wasteful number, since it uses less digits than its factorization.

42054133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79198056 (or 79198053 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 42054133221 its reverse (12233145024), we get a palindrome (54287278245).

The spelling of 42054133221 in words is "forty-two billion, fifty-four million, one hundred thirty-three thousand, two hundred twenty-one".