111222102012011 has 4 divisors (see below), whose sum is σ = 112071125691624. Its totient is φ = 110373078332400.

The previous prime is 111222102011981. The next prime is 111222102012017. The reversal of 111222102012011 is 110210201222111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111222102012011 - 2⁴⁶ = 40853357834347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222102012017) 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, 424511839610 + ... + 424511839871.

It is an arithmetic number, because the mean of its divisors is an integer number (28017781422906).

Almost surely, 2^{111222102012011} is an apocalyptic number.

111222102012011 is a deficient number, since it is larger than the sum of its proper divisors (849023679613).

111222102012011 is an equidigital number, since it uses as much as digits as its factorization.

111222102012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849023679612.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111222102012011 its reverse (110210201222111), we get a palindrome (221432303234122).

The spelling of 111222102012011 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred two million, twelve thousand, eleven".