1111021011212 has 36 divisors (see below), whose sum is σ = 2265535613880. Its totient is φ = 475348857984.

The previous prime is 1111021011209. The next prime is 1111021011239. The reversal of 1111021011212 is 2121101201111.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4663262 + ... + 4895717.

It is an arithmetic number, because the mean of its divisors is an integer number (62931544830).

Almost surely, 2^{1111021011212} is an apocalyptic number.

It is an amenable number.

1111021011212 is an abundant number, since it is smaller than the sum of its proper divisors (1154514602668).

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

1111021011212 is a wasteful number, since it uses less digits than its factorization.

1111021011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9559590 (or 9559581 counting only the distinct ones).

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

Adding to 1111021011212 its reverse (2121101201111), we get a palindrome (3232122212323).

The spelling of 1111021011212 in words is "one trillion, one hundred eleven billion, twenty-one million, eleven thousand, two hundred twelve".