12122312120 has 16 divisors (see below), whose sum is σ = 27275202360. Its totient is φ = 4848924832.

The previous prime is 12122312117. The next prime is 12122312123. The reversal of 12122312120 is 2121322121.

It is an interprime number because it is at equal distance from previous prime (12122312117) and next prime (12122312123).

It is a super-2 number, since 2×12122312120² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122312123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151528862 + ... + 151528941.

Almost surely, 2^12122312120 is an apocalyptic number.

12122312120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122312120 is an abundant number, since it is smaller than the sum of its proper divisors (15152890240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12122312120 is a wasteful number, since it uses less digits than its factorization.

12122312120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303057814 (or 303057810 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12122312120 its reverse (2121322121), we get a palindrome (14243634241).

The spelling of 12122312120 in words is "twelve billion, one hundred twenty-two million, three hundred twelve thousand, one hundred twenty".