12201212011116 has 48 divisors (see below), whose sum is σ = 28727611444224. Its totient is φ = 4030212324096.

The previous prime is 12201212011063. The next prime is 12201212011117. The reversal of 12201212011116 is 61111021210221.

It is a junction number, because it is equal to n+sod(n) for n = 12201212011092 and 12201212011101.

It is not an unprimeable number, because it can be changed into a prime (12201212011117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5358205 + ... + 7287851.

It is an arithmetic number, because the mean of its divisors is an integer number (598491905088).

Almost surely, 2^{12201212011116} is an apocalyptic number.

It is an amenable number.

12201212011116 is an abundant number, since it is smaller than the sum of its proper divisors (16526399433108).

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

12201212011116 is a wasteful number, since it uses less digits than its factorization.

12201212011116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934430 (or 1934428 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 12201212011116 its reverse (61111021210221), we get a palindrome (73312233221337).

The spelling of 12201212011116 in words is "twelve trillion, two hundred one billion, two hundred twelve million, eleven thousand, one hundred sixteen".