12120101121012 has 12 divisors (see below), whose sum is σ = 28280235949056. Its totient is φ = 4040033707000.

The previous prime is 12120101120989. The next prime is 12120101121131. The reversal of 12120101121012 is 21012110102121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 12120101120982 and 12120101121000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505004213364 + ... + 505004213387.

It is an arithmetic number, because the mean of its divisors is an integer number (2356686329088).

Almost surely, 2^{12120101121012} is an apocalyptic number.

12120101121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120101121012 is an abundant number, since it is smaller than the sum of its proper divisors (16160134828044).

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

12120101121012 is a wasteful number, since it uses less digits than its factorization.

12120101121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010008426758 (or 1010008426756 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12120101121012 its reverse (21012110102121), we get a palindrome (33132211223133).

The spelling of 12120101121012 in words is "twelve trillion, one hundred twenty billion, one hundred one million, one hundred twenty-one thousand, twelve".