121155122324 has 12 divisors (see below), whose sum is σ = 212065513044. Its totient is φ = 60564975744.

The previous prime is 121155122321. The next prime is 121155122357. The reversal of 121155122324 is 423221551121.

It can be written as a sum of positive squares in 2 ways, for example, as 71038240900 + 50116881424 = 266530^2 + 223868^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121155122321) 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 3 ways as a sum of consecutive naturals, for example, 3124679 + ... + 3163214.

It is an arithmetic number, because the mean of its divisors is an integer number (17672126087).

Almost surely, 2^121155122324 is an apocalyptic number.

It is an amenable number.

121155122324 is a deficient number, since it is larger than the sum of its proper divisors (90910390720).

121155122324 is a wasteful number, since it uses less digits than its factorization.

121155122324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6292714 (or 6292712 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

Adding to 121155122324 its reverse (423221551121), we get a palindrome (544376673445).

The spelling of 121155122324 in words is "one hundred twenty-one billion, one hundred fifty-five million, one hundred twenty-two thousand, three hundred twenty-four".