1011112101212 has 6 divisors (see below), whose sum is σ = 1769446177128. Its totient is φ = 505556050604.

The previous prime is 1011112101187. The next prime is 1011112101217. The reversal of 1011112101212 is 2121012111101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011112101217) 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 as a sum of consecutive naturals, namely, 126389012648 + ... + 126389012655.

It is an arithmetic number, because the mean of its divisors is an integer number (294907696188).

Almost surely, 2^{1011112101212} is an apocalyptic number.

It is an amenable number.

1011112101212 is a deficient number, since it is larger than the sum of its proper divisors (758334075916).

1011112101212 is a wasteful number, since it uses less digits than its factorization.

1011112101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252778025307 (or 252778025305 counting only the distinct ones).

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

Adding to 1011112101212 its reverse (2121012111101), we get a palindrome (3132124212313).

The spelling of 1011112101212 in words is "one trillion, eleven billion, one hundred twelve million, one hundred one thousand, two hundred twelve".