121212144324 has 36 divisors (see below), whose sum is σ = 313870475100. Its totient is φ = 39418583040.

The previous prime is 121212144307. The next prime is 121212144331. The reversal of 121212144324 is 423441212121.

121212144324 is a `hidden beast` number, since 1 + 2 + 1 + 212 + 1 + 443 + 2 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 18997660224 + 102214484100 = 137832^2 + 319710^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 41059549 + ... + 41062500.

Almost surely, 2^121212144324 is an apocalyptic number.

It is an amenable number.

121212144324 is an abundant number, since it is smaller than the sum of its proper divisors (192658330776).

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

121212144324 is a wasteful number, since it uses less digits than its factorization.

121212144324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82122100 (or 82122095 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 121212144324 its reverse (423441212121), we get a palindrome (544653356445).

The spelling of 121212144324 in words is "one hundred twenty-one billion, two hundred twelve million, one hundred forty-four thousand, three hundred twenty-four".