121100224124 has 12 divisors (see below), whose sum is σ = 231191337048. Its totient is φ = 55045556400.

The previous prime is 121100224109. The next prime is 121100224129. The reversal of 121100224124 is 421422001121.

It is a junction number, because it is equal to n+sod(n) for n = 121100224096 and 121100224105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100224129) 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, 1376138867 + ... + 1376138954.

It is an arithmetic number, because the mean of its divisors is an integer number (19265944754).

Almost surely, 2^121100224124 is an apocalyptic number.

It is an amenable number.

121100224124 is a deficient number, since it is larger than the sum of its proper divisors (110091112924).

121100224124 is a wasteful number, since it uses less digits than its factorization.

121100224124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752277836 (or 2752277834 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121100224124 its reverse (421422001121), we get a palindrome (542522225245).

The spelling of 121100224124 in words is "one hundred twenty-one billion, one hundred million, two hundred twenty-four thousand, one hundred twenty-four".