242121155122 has 24 divisors (see below), whose sum is σ = 456228295488. Its totient is φ = 94332916920.

The previous prime is 242121155117. The next prime is 242121155131. The reversal of 242121155122 is 221551121242.

242121155122 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×242121155122² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71462638 + ... + 71466025.

It is an arithmetic number, because the mean of its divisors is an integer number (19009512312).

Almost surely, 2^242121155122 is an apocalyptic number.

242121155122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

242121155122 is a deficient number, since it is larger than the sum of its proper divisors (214107140366).

242121155122 is a wasteful number, since it uses less digits than its factorization.

242121155122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142928694 (or 142928683 counting only the distinct ones).

The product of its digits is 3200, while the sum is 28.

Adding to 242121155122 its reverse (221551121242), we get a palindrome (463672276364).

The spelling of 242121155122 in words is "two hundred forty-two billion, one hundred twenty-one million, one hundred fifty-five thousand, one hundred twenty-two".