42224356335721 has 16 divisors (see below), whose sum is σ = 48688696376320. Its totient is φ = 35869000588560.

The previous prime is 42224356335643. The next prime is 42224356335767. The reversal of 42224356335721 is 12753365342224.

It is a cyclic number.

It is not a de Polignac number, because 42224356335721 - 2¹³ = 42224356327529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42224356339721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37444461 + ... + 38555626.

It is an arithmetic number, because the mean of its divisors is an integer number (3043043523520).

Almost surely, 2^{42224356335721} is an apocalyptic number.

It is an amenable number.

42224356335721 is a deficient number, since it is larger than the sum of its proper divisors (6464340040599).

42224356335721 is a wasteful number, since it uses less digits than its factorization.

42224356335721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76000804.

The product of its digits is 7257600, while the sum is 49.

The spelling of 42224356335721 in words is "forty-two trillion, two hundred twenty-four billion, three hundred fifty-six million, three hundred thirty-five thousand, seven hundred twenty-one".