120121101210213 has 12 divisors (see below), whose sum is σ = 173509538164300. Its totient is φ = 80080142973696.

The previous prime is 120121101210199. The next prime is 120121101210247. The reversal of 120121101210213 is 312012101121021.

It is a happy number.

120121101210213 is a `hidden beast` number, since 1 + 20 + 121 + 101 + 210 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66175263893124 + 53945837317089 = 8134818^2 + 7344783^2 .

It is not a de Polignac number, because 120121101210213 - 2³⁶ = 120052381733477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121101210713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47975206 + ... + 50416887.

Almost surely, 2^{120121101210213} is an apocalyptic number.

It is an amenable number.

120121101210213 is a deficient number, since it is larger than the sum of its proper divisors (53388436954087).

120121101210213 is a wasteful number, since it uses less digits than its factorization.

120121101210213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98527748 (or 98527745 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 120121101210213 its reverse (312012101121021), we get a palindrome (432133202331234).

The spelling of 120121101210213 in words is "one hundred twenty trillion, one hundred twenty-one billion, one hundred one million, two hundred ten thousand, two hundred thirteen".