1111101211212 has 12 divisors (see below), whose sum is σ = 2592569492856. Its totient is φ = 370367070400.

The previous prime is 1111101211169. The next prime is 1111101211219. The reversal of 1111101211212 is 2121121011111.

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 = 1111101211191 and 1111101211200.

It is not an unprimeable number, because it can be changed into a prime (1111101211219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46295883789 + ... + 46295883812.

It is an arithmetic number, because the mean of its divisors is an integer number (216047457738).

Almost surely, 2^{1111101211212} is an apocalyptic number.

1111101211212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1111101211212 is an abundant number, since it is smaller than the sum of its proper divisors (1481468281644).

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

1111101211212 is a wasteful number, since it uses less digits than its factorization.

1111101211212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92591767608 (or 92591767606 counting only the distinct ones).

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

Adding to 1111101211212 its reverse (2121121011111), we get a palindrome (3232222222323).

The spelling of 1111101211212 in words is "one trillion, one hundred eleven billion, one hundred one million, two hundred eleven thousand, two hundred twelve".