12122102100000 has 144 divisors (see below), whose sum is σ = 39773102858496. Its totient is φ = 3232560480000.

The previous prime is 12122102099963. The next prime is 12122102100001. The reversal of 12122102100000 is 120122121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (12122102100001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19903504 + ... + 20503503.

It is an arithmetic number, because the mean of its divisors is an integer number (276202103184).

Almost surely, 2^{12122102100000} is an apocalyptic number.

12122102100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122102100000 is an abundant number, since it is smaller than the sum of its proper divisors (27651000758496).

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

12122102100000 is an frugal number, since it uses more digits than its factorization.

12122102100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40407045 (or 40407017 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12122102100000 its reverse (120122121), we get a palindrome (12122222222121).

The spelling of 12122102100000 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, one hundred thousand".