42424988221 has 8 divisors (see below), whose sum is σ = 52893491904. Its totient is φ = 33058432320.

The previous prime is 42424988201. The next prime is 42424988233. The reversal of 42424988221 is 12288942424.

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 42424988221 - 2¹³ = 42424980029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42424988201) 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, 275486860 + ... + 275487013.

It is an arithmetic number, because the mean of its divisors is an integer number (6611686488).

Almost surely, 2^42424988221 is an apocalyptic number.

It is an amenable number.

42424988221 is a deficient number, since it is larger than the sum of its proper divisors (10468503683).

42424988221 is a wasteful number, since it uses less digits than its factorization.

42424988221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550973891.

The product of its digits is 589824, while the sum is 46.

The spelling of 42424988221 in words is "forty-two billion, four hundred twenty-four million, nine hundred eighty-eight thousand, two hundred twenty-one".