111013211231212 has 24 divisors (see below), whose sum is σ = 196367105526480. Its totient is φ = 54911166132480.

The previous prime is 111013211231207. The next prime is 111013211231281. The reversal of 111013211231212 is 212132112310111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 355117873 + ... + 355430344.

It is an arithmetic number, because the mean of its divisors is an integer number (8181962730270).

Almost surely, 2^{111013211231212} is an apocalyptic number.

It is an amenable number.

111013211231212 is a deficient number, since it is larger than the sum of its proper divisors (85353894295268).

111013211231212 is a wasteful number, since it uses less digits than its factorization.

111013211231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710548641 (or 710548639 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 111013211231212 its reverse (212132112310111), we get a palindrome (323145323541323).

The spelling of 111013211231212 in words is "one hundred eleven trillion, thirteen billion, two hundred eleven million, two hundred thirty-one thousand, two hundred twelve".