120000121213 has 4 divisors (see below), whose sum is σ = 137142995680. Its totient is φ = 102857246748.

The previous prime is 120000121211. The next prime is 120000121229. The reversal of 120000121213 is 312121000021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312121000021 = 141269 ⋅2209409.

It is a cyclic number.

It is not a de Polignac number, because 120000121213 - 2¹ = 120000121211 is a prime.

It is a super-2 number, since 2×120000121213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120000121193 and 120000121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120000121211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8571437223 + ... + 8571437236.

It is an arithmetic number, because the mean of its divisors is an integer number (34285748920).

Almost surely, 2^120000121213 is an apocalyptic number.

It is an amenable number.

120000121213 is a deficient number, since it is larger than the sum of its proper divisors (17142874467).

120000121213 is an equidigital number, since it uses as much as digits as its factorization.

120000121213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17142874466.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120000121213 its reverse (312121000021), we get a palindrome (432121121234).

The spelling of 120000121213 in words is "one hundred twenty billion, one hundred twenty-one thousand, two hundred thirteen".