2211111012012 has 48 divisors (see below), whose sum is σ = 5953541647872. Its totient is φ = 625612544640.

The previous prime is 2211111012007. The next prime is 2211111012023. The reversal of 2211111012012 is 2102101111122.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2211111011982 and 2211111012000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127771689 + ... + 127788992.

It is an arithmetic number, because the mean of its divisors is an integer number (124032117664).

Almost surely, 2^{2211111012012} is an apocalyptic number.

It is an amenable number.

2211111012012 is an abundant number, since it is smaller than the sum of its proper divisors (3742430635860).

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

2211111012012 is a wasteful number, since it uses less digits than its factorization.

2211111012012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255560798 (or 255560796 counting only the distinct ones).

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

Adding to 2211111012012 its reverse (2102101111122), we get a palindrome (4313212123134).

The spelling of 2211111012012 in words is "two trillion, two hundred eleven billion, one hundred eleven million, twelve thousand, twelve".