12122122001100 has 72 divisors (see below), whose sum is σ = 35079250409280. Its totient is φ = 3232021097280.

The previous prime is 12122122001083. The next prime is 12122122001117. The reversal of 12122122001100 is 110022122121.

It is an interprime number because it is at equal distance from previous prime (12122122001083) and next prime (12122122001117).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12122122001100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1620142 + ... + 5183541.

It is an arithmetic number, because the mean of its divisors is an integer number (487211811240).

Almost surely, 2^{12122122001100} is an apocalyptic number.

12122122001100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122122001100 is an abundant number, since it is smaller than the sum of its proper divisors (22957128408180).

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

12122122001100 is a wasteful number, since it uses less digits than its factorization.

12122122001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6809639 (or 6809632 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12122122001100 its reverse (110022122121), we get a palindrome (12232144123221).

The spelling of 12122122001100 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty-two million, one thousand, one hundred".