42421021540001 has 32 divisors (see below), whose sum is σ = 46725775810560. Its totient is φ = 38267592100416.

The previous prime is 42421021539997. The next prime is 42421021540019. The reversal of 42421021540001 is 10004512012424.

It is a cyclic number.

It is not a de Polignac number, because 42421021540001 - 2² = 42421021539997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42421021540081) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1299368660 + ... + 1299401306.

It is an arithmetic number, because the mean of its divisors is an integer number (1460180494080).

Almost surely, 2^{42421021540001} is an apocalyptic number.

It is an amenable number.

42421021540001 is a deficient number, since it is larger than the sum of its proper divisors (4304754270559).

42421021540001 is a wasteful number, since it uses less digits than its factorization.

42421021540001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35813.

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 42421021540001 its reverse (10004512012424), we get a palindrome (52425533552425).

The spelling of 42421021540001 in words is "forty-two trillion, four hundred twenty-one billion, twenty-one million, five hundred forty thousand, one".