120013210121 has 32 divisors (see below), whose sum is σ = 140991610368. Its totient is φ = 100042905600.

The previous prime is 120013210099. The next prime is 120013210129. The reversal of 120013210121 is 121012310021.

It is a cyclic number.

It is not a de Polignac number, because 120013210121 - 2¹⁰ = 120013209097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120013210096 and 120013210105.

It is not an unprimeable number, because it can be changed into a prime (120013210129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10565381 + ... + 10576733.

It is an arithmetic number, because the mean of its divisors is an integer number (4405987824).

Almost surely, 2^120013210121 is an apocalyptic number.

It is an amenable number.

120013210121 is a deficient number, since it is larger than the sum of its proper divisors (20978400247).

120013210121 is a wasteful number, since it uses less digits than its factorization.

120013210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 120013210121 its reverse (121012310021), we get a palindrome (241025520142).

The spelling of 120013210121 in words is "one hundred twenty billion, thirteen million, two hundred ten thousand, one hundred twenty-one".