24212120121 has 48 divisors (see below), whose sum is σ = 40138525440. Its totient is φ = 13777050240.

The previous prime is 24212120117. The next prime is 24212120131. The reversal of 24212120121 is 12102121242.

24212120121 is a `hidden beast` number, since 2 + 421 + 2 + 120 + 121 = 666.

It is not a de Polignac number, because 24212120121 - 2² = 24212120117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 24212120094 and 24212120103.

It is not an unprimeable number, because it can be changed into a prime (24212120131) 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 47 ways as a sum of consecutive naturals, for example, 26345700 + ... + 26346618.

It is an arithmetic number, because the mean of its divisors is an integer number (836219280).

Almost surely, 2^24212120121 is an apocalyptic number.

24212120121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

24212120121 is a deficient number, since it is larger than the sum of its proper divisors (15926405319).

24212120121 is a wasteful number, since it uses less digits than its factorization.

24212120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246 (or 2243 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 24212120121 its reverse (12102121242), we get a palindrome (36314241363).

The spelling of 24212120121 in words is "twenty-four billion, two hundred twelve million, one hundred twenty thousand, one hundred twenty-one".