4242121544101 has 4 divisors (see below), whose sum is σ = 4848138907552. Its totient is φ = 3636104180652.

The previous prime is 4242121544053. The next prime is 4242121544159. The reversal of 4242121544101 is 1014451212424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4242121544101 - 2¹⁹ = 4242121019813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4242121544201) 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 3 ways as a sum of consecutive naturals, for example, 303008681715 + ... + 303008681728.

It is an arithmetic number, because the mean of its divisors is an integer number (1212034726888).

Almost surely, 2^{4242121544101} is an apocalyptic number.

It is an amenable number.

4242121544101 is a deficient number, since it is larger than the sum of its proper divisors (606017363451).

4242121544101 is an equidigital number, since it uses as much as digits as its factorization.

4242121544101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606017363450.

The product of its (nonzero) digits is 10240, while the sum is 31.

Adding to 4242121544101 its reverse (1014451212424), we get a palindrome (5256572756525).

The spelling of 4242121544101 in words is "four trillion, two hundred forty-two billion, one hundred twenty-one million, five hundred forty-four thousand, one hundred one".