121220344324 has 48 divisors (see below), whose sum is σ = 222406248960. Its totient is φ = 57755093760.

The previous prime is 121220344213. The next prime is 121220344327. The reversal of 121220344324 is 423443022121.

It is a junction number, because it is equal to n+sod(n) for n = 121220344292 and 121220344301.

It is not an unprimeable number, because it can be changed into a prime (121220344327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1907047 + ... + 1969585.

It is an arithmetic number, because the mean of its divisors is an integer number (4633463520).

Almost surely, 2^121220344324 is an apocalyptic number.

It is an amenable number.

121220344324 is a deficient number, since it is larger than the sum of its proper divisors (101185904636).

121220344324 is a wasteful number, since it uses less digits than its factorization.

121220344324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62860 (or 62858 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 121220344324 its reverse (423443022121), we get a palindrome (544663366445).

The spelling of 121220344324 in words is "one hundred twenty-one billion, two hundred twenty million, three hundred forty-four thousand, three hundred twenty-four".