12120123001021 has 16 divisors (see below), whose sum is σ = 14113080448128. Its totient is φ = 10192547851200.

The previous prime is 12120123001009. The next prime is 12120123001037. The reversal of 12120123001021 is 12010032102121.

12120123001021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12120123001021 - 2⁹ = 12120123000509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12120123000986 and 12120123001004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120123001321) 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, 52277326 + ... + 52508656.

It is an arithmetic number, because the mean of its divisors is an integer number (882067528008).

Almost surely, 2^{12120123001021} is an apocalyptic number.

It is an amenable number.

12120123001021 is a deficient number, since it is larger than the sum of its proper divisors (1992957447107).

12120123001021 is a wasteful number, since it uses less digits than its factorization.

12120123001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372612.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 12120123001021 its reverse (12010032102121), we get a palindrome (24130155103142).

The spelling of 12120123001021 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-three million, one thousand, twenty-one".