1101111112212 has 12 divisors (see below), whose sum is σ = 2569259261856. Its totient is φ = 367037037400.

The previous prime is 1101111112187. The next prime is 1101111112243. The reversal of 1101111112212 is 2122111111011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1101111112191 and 1101111112200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45879629664 + ... + 45879629687.

It is an arithmetic number, because the mean of its divisors is an integer number (214104938488).

Almost surely, 2^{1101111112212} is an apocalyptic number.

1101111112212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101111112212 is an abundant number, since it is smaller than the sum of its proper divisors (1468148149644).

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

1101111112212 is a wasteful number, since it uses less digits than its factorization.

1101111112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91759259358 (or 91759259356 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 1101111112212 its reverse (2122111111011), we get a palindrome (3223222223223).

The spelling of 1101111112212 in words is "one trillion, one hundred one billion, one hundred eleven million, one hundred twelve thousand, two hundred twelve".