12120021110000 has 50 divisors (see below), whose sum is σ = 29343783133632. Its totient is φ = 4848008440000.

The previous prime is 12120021109969. The next prime is 12120021110017. The reversal of 12120021110000 is 1112002121.

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, 605991056 + ... + 606011055.

Almost surely, 2^{12120021110000} is an apocalyptic number.

12120021110000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120021110000 is an abundant number, since it is smaller than the sum of its proper divisors (17223762023632).

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

12120021110000 is an equidigital number, since it uses as much as digits as its factorization.

12120021110000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212002139 (or 1212002118 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12120021110000 its reverse (1112002121), we get a palindrome (12121133112121).

The spelling of 12120021110000 in words is "twelve trillion, one hundred twenty billion, twenty-one million, one hundred ten thousand".