42234020141221 has 16 divisors (see below), whose sum is σ = 43994876405760. Its totient is φ = 40499681848560.

The previous prime is 42234020141207. The next prime is 42234020141263. The reversal of 42234020141221 is 12214102043224.

42234020141221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42234020141221 is a prime.

It is a super-2 number, since 2×42234020141221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42234020141221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42234020141021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11876815 + ... + 15017548.

It is an arithmetic number, because the mean of its divisors is an integer number (2749679775360).

Almost surely, 2^{42234020141221} is an apocalyptic number.

It is an amenable number.

42234020141221 is a deficient number, since it is larger than the sum of its proper divisors (1760856264539).

42234020141221 is a wasteful number, since it uses less digits than its factorization.

42234020141221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26894856.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 42234020141221 its reverse (12214102043224), we get a palindrome (54448122184445).

The spelling of 42234020141221 in words is "forty-two trillion, two hundred thirty-four billion, twenty million, one hundred forty-one thousand, two hundred twenty-one".