242115121052 has 96 divisors (see below), whose sum is σ = 514348154880. Its totient is φ = 97410962880.

The previous prime is 242115121037. The next prime is 242115121063. The reversal of 242115121052 is 250121511242.

It is a happy number.

It is a super-2 number, since 2×242115121052² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 75872777 + ... + 75875967.

It is an arithmetic number, because the mean of its divisors is an integer number (5357793280).

Almost surely, 2^242115121052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242115121052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257174077440).

242115121052 is an abundant number, since it is smaller than the sum of its proper divisors (272233033828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242115121052 is a wasteful number, since it uses less digits than its factorization.

242115121052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471 (or 4469 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 242115121052 its reverse (250121511242), we get a palindrome (492236632294).

The spelling of 242115121052 in words is "two hundred forty-two billion, one hundred fifteen million, one hundred twenty-one thousand, fifty-two".