12122021013 has 8 divisors (see below), whose sum is σ = 16163535648. Its totient is φ = 8080926864.

The previous prime is 12122020961. The next prime is 12122021017. The reversal of 12122021013 is 31012022121.

12122021013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12122021013 - 2⁶ = 12122020949 is a prime.

It is a super-2 number, since 2×12122021013² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12122020983 and 12122021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122021017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30231 + ... + 158612.

It is an arithmetic number, because the mean of its divisors is an integer number (2020441956).

Almost surely, 2^12122021013 is an apocalyptic number.

It is an amenable number.

12122021013 is a deficient number, since it is larger than the sum of its proper divisors (4041514635).

12122021013 is a wasteful number, since it uses less digits than its factorization.

12122021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210243.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12122021013 its reverse (31012022121), we get a palindrome (43134043134).

The spelling of 12122021013 in words is "twelve billion, one hundred twenty-two million, twenty-one thousand, thirteen".