242121230525 has 72 divisors (see below), whose sum is σ = 330515512320. Its totient is φ = 175727232000.

The previous prime is 242121230447. The next prime is 242121230531. The reversal of 242121230525 is 525032121242.

It is a happy number.

It is not a de Polignac number, because 242121230525 - 2²⁸ = 241852795069 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 60695231 + ... + 60699219.

Almost surely, 2^242121230525 is an apocalyptic number.

242121230525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

242121230525 is a deficient number, since it is larger than the sum of its proper divisors (88394281795).

242121230525 is a wasteful number, since it uses less digits than its factorization.

242121230525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4335 (or 4313 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 242121230525 its reverse (525032121242), we get a palindrome (767153351767).

The spelling of 242121230525 in words is "two hundred forty-two billion, one hundred twenty-one million, two hundred thirty thousand, five hundred twenty-five".