42242101342021 has 32 divisors (see below), whose sum is σ = 50438485278720. Its totient is φ = 34590119568576.

The previous prime is 42242101341983. The next prime is 42242101342031. The reversal of 42242101342021 is 12024310124224.

It is not a de Polignac number, because 42242101342021 - 2⁷ = 42242101341893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242101342031) 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, 427861755 + ... + 427960471.

It is an arithmetic number, because the mean of its divisors is an integer number (1576202664960).

Almost surely, 2^{42242101342021} is an apocalyptic number.

It is an amenable number.

42242101342021 is a deficient number, since it is larger than the sum of its proper divisors (8196383936699).

42242101342021 is a wasteful number, since it uses less digits than its factorization.

42242101342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102033.

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

Adding to 42242101342021 its reverse (12024310124224), we get a palindrome (54266411466245).

The spelling of 42242101342021 in words is "forty-two trillion, two hundred forty-two billion, one hundred one million, three hundred forty-two thousand, twenty-one".