12101020212012 has 24 divisors (see below), whose sum is σ = 28369532382912. Its totient is φ = 4014556467600.

The previous prime is 12101020212011. The next prime is 12101020212019. The reversal of 12101020212012 is 21021202010121.

It is a junction number, because it is equal to n+sod(n) for n = 12101020211982 and 12101020212000.

It is not an unprimeable number, because it can be changed into a prime (12101020212011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2389614414 + ... + 2389619477.

It is an arithmetic number, because the mean of its divisors is an integer number (1182063849288).

Almost surely, 2^{12101020212012} is an apocalyptic number.

12101020212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12101020212012 is an abundant number, since it is smaller than the sum of its proper divisors (16268512170900).

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

12101020212012 is a wasteful number, since it uses less digits than its factorization.

12101020212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779234109 (or 4779234107 counting only the distinct ones).

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

Adding to 12101020212012 its reverse (21021202010121), we get a palindrome (33122222222133).

The spelling of 12101020212012 in words is "twelve trillion, one hundred one billion, twenty million, two hundred twelve thousand, twelve".