12122002120 has 32 divisors (see below), whose sum is σ = 27302339520. Its totient is φ = 4843852480.

The previous prime is 12122002097. The next prime is 12122002129. The reversal of 12122002120 is 2120022121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122002120.

It is not an unprimeable number, because it can be changed into a prime (12122002129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114826 + ... + 193465.

It is an arithmetic number, because the mean of its divisors is an integer number (853198110).

Almost surely, 2^12122002120 is an apocalyptic number.

12122002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122002120 is an abundant number, since it is smaller than the sum of its proper divisors (15180337400).

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

12122002120 is a wasteful number, since it uses less digits than its factorization.

12122002120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309285 (or 309281 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12122002120 its reverse (2120022121), we get a palindrome (14242024241).

The spelling of 12122002120 in words is "twelve billion, one hundred twenty-two million, two thousand, one hundred twenty".