42015220042401 has 24 divisors (see below), whose sum is σ = 60952273200000. Its totient is φ = 27888512279712.

The previous prime is 42015220042391. The next prime is 42015220042441. The reversal of 42015220042401 is 10424002251024.

It is a happy number.

42015220042401 is a `hidden beast` number, since 4 + 2 + 0 + 1 + 52 + 200 + 4 + 2 + 401 = 666.

It is not a de Polignac number, because 42015220042401 - 2¹⁹ = 42015219518113 is a prime.

It is a super-2 number, since 2×42015220042401² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42015220042441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11998675 + ... + 15099623.

It is an arithmetic number, because the mean of its divisors is an integer number (2539678050000).

Almost surely, 2^{42015220042401} is an apocalyptic number.

It is an amenable number.

42015220042401 is a deficient number, since it is larger than the sum of its proper divisors (18937053157599).

42015220042401 is a wasteful number, since it uses less digits than its factorization.

42015220042401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107493 (or 3107490 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

Adding to 42015220042401 its reverse (10424002251024), we get a palindrome (52439222293425).

The spelling of 42015220042401 in words is "forty-two trillion, fifteen billion, two hundred twenty million, forty-two thousand, four hundred one".