1212102211113 has 6 divisors (see below), whose sum is σ = 1750814304954. Its totient is φ = 808068140736.

The previous prime is 1212102211087. The next prime is 1212102211127. The reversal of 1212102211113 is 3111122012121.

It is a happy number.

1212102211113 is a `hidden beast` number, since 121 + 210 + 221 + 1 + 113 = 666.

It can be written as a sum of positive squares in only one way, i.e., 757270665369 + 454831545744 = 870213^2 + 674412^2 .

It is not a de Polignac number, because 1212102211113 - 2⁵ = 1212102211081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212102211153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67339011720 + ... + 67339011737.

It is an arithmetic number, because the mean of its divisors is an integer number (291802384159).

Almost surely, 2^{1212102211113} is an apocalyptic number.

It is an amenable number.

1212102211113 is a deficient number, since it is larger than the sum of its proper divisors (538712093841).

1212102211113 is a wasteful number, since it uses less digits than its factorization.

1212102211113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134678023463 (or 134678023460 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1212102211113 its reverse (3111122012121), we get a palindrome (4323224223234).

The spelling of 1212102211113 in words is "one trillion, two hundred twelve billion, one hundred two million, two hundred eleven thousand, one hundred thirteen".