1211010112112 has 20 divisors (see below), whose sum is σ = 2346509598000. Its totient is φ = 605459248128.

The previous prime is 1211010112093. The next prime is 1211010112127. The reversal of 1211010112112 is 2112110101121.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2644388 + ... + 3068355.

It is an arithmetic number, because the mean of its divisors is an integer number (117325479900).

Almost surely, 2^{1211010112112} is an apocalyptic number.

It is an amenable number.

1211010112112 is a deficient number, since it is larger than the sum of its proper divisors (1135499485888).

1211010112112 is a wasteful number, since it uses less digits than its factorization.

1211010112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5726000 (or 5725994 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1211010112112 its reverse (2112110101121), we get a palindrome (3323120213233).

The spelling of 1211010112112 in words is "one trillion, two hundred eleven billion, ten million, one hundred twelve thousand, one hundred twelve".