242120514021 has 16 divisors (see below), whose sum is σ = 324249868800. Its totient is φ = 160702576640.

The previous prime is 242120514011. The next prime is 242120514029. The reversal of 242120514021 is 120415021242.

It is a cyclic number.

It is not a de Polignac number, because 242120514021 - 2¹³ = 242120505829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242120513982 and 242120514000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242120514029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9158380 + ... + 9184778.

It is an arithmetic number, because the mean of its divisors is an integer number (20265616800).

Almost surely, 2^242120514021 is an apocalyptic number.

It is an amenable number.

242120514021 is a deficient number, since it is larger than the sum of its proper divisors (82129354779).

242120514021 is a wasteful number, since it uses less digits than its factorization.

242120514021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39756.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 242120514021 its reverse (120415021242), we get a palindrome (362535535263).

The spelling of 242120514021 in words is "two hundred forty-two billion, one hundred twenty million, five hundred fourteen thousand, twenty-one".