3120020121224 has 8 divisors (see below), whose sum is σ = 5850037727310. Its totient is φ = 1560010060608.

The previous prime is 3120020121223. The next prime is 3120020121269. The reversal of 3120020121224 is 4221210200213.

It can be written as a sum of positive squares in only one way, i.e., 1611422058724 + 1508598062500 = 1269418^2 + 1228250^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 3120020121196 and 3120020121205.

It is not an unprimeable number, because it can be changed into a prime (3120020121223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195001257569 + ... + 195001257584.

Almost surely, 2^{3120020121224} is an apocalyptic number.

It is an amenable number.

3120020121224 is a deficient number, since it is larger than the sum of its proper divisors (2730017606086).

3120020121224 is a wasteful number, since it uses less digits than its factorization.

3120020121224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390002515159 (or 390002515155 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 3120020121224 its reverse (4221210200213), we get a palindrome (7341230321437).

The spelling of 3120020121224 in words is "three trillion, one hundred twenty billion, twenty million, one hundred twenty-one thousand, two hundred twenty-four".