12122111110000 has 50 divisors (see below), whose sum is σ = 29348843232632. Its totient is φ = 4848844440000.

The previous prime is 12122111109961. The next prime is 12122111110019. The reversal of 12122111110000 is 1111122121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 606095556 + ... + 606115555.

Almost surely, 2^{12122111110000} is an apocalyptic number.

12122111110000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122111110000 is an abundant number, since it is smaller than the sum of its proper divisors (17226732122632).

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

12122111110000 is an equidigital number, since it uses as much as digits as its factorization.

12122111110000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212211139 (or 1212211118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12122111110000 its reverse (1111122121), we get a palindrome (12123222232121).

The spelling of 12122111110000 in words is "twelve trillion, one hundred twenty-two billion, one hundred eleven million, one hundred ten thousand".