121220123224 has 32 divisors (see below), whose sum is σ = 229764916080. Its totient is φ = 59950209024.

The previous prime is 121220123207. The next prime is 121220123231. The reversal of 121220123224 is 422321022121.

It is a junction number, because it is equal to n+sod(n) for n = 121220123195 and 121220123204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310964 + ... + 1400380.

Almost surely, 2^121220123224 is an apocalyptic number.

It is an amenable number.

121220123224 is a deficient number, since it is larger than the sum of its proper divisors (108544792856).

121220123224 is a wasteful number, since it uses less digits than its factorization.

121220123224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91267 (or 91263 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121220123224 its reverse (422321022121), we get a palindrome (543541145345).

The spelling of 121220123224 in words is "one hundred twenty-one billion, two hundred twenty million, one hundred twenty-three thousand, two hundred twenty-four".