242025002021 has 32 divisors (see below), whose sum is σ = 269284093056. Its totient is φ = 215677440000.

The previous prime is 242025001997. The next prime is 242025002029. The reversal of 242025002021 is 120200520242.

It is a de Polignac number, because none of the positive numbers 2^k-242025002021 is a prime.

It is a super-2 number, since 2×242025002021² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 242025001984 and 242025002002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242025002029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175252751 + ... + 175254131.

It is an arithmetic number, because the mean of its divisors is an integer number (8415127908).

Almost surely, 2^242025002021 is an apocalyptic number.

It is an amenable number.

242025002021 is a deficient number, since it is larger than the sum of its proper divisors (27259091035).

242025002021 is a wasteful number, since it uses less digits than its factorization.

242025002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2453.

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 242025002021 its reverse (120200520242), we get a palindrome (362225522263).

The spelling of 242025002021 in words is "two hundred forty-two billion, twenty-five million, two thousand, twenty-one".