112212211221111 has 8 divisors (see below), whose sum is σ = 149616335549680. Its totient is φ = 74808113853312.

The previous prime is 112212211221073. The next prime is 112212211221151. The reversal of 112212211221111 is 111122112212211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112212211221111 - 2²² = 112212207026807 is a prime.

It is a super-3 number, since 3×112212211221111³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112212211221151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6934845 + ... + 16508073.

It is an arithmetic number, because the mean of its divisors is an integer number (18702041943710).

Almost surely, 2^{112212211221111} is an apocalyptic number.

112212211221111 is a deficient number, since it is larger than the sum of its proper divisors (37404124328569).

112212211221111 is an equidigital number, since it uses as much as digits as its factorization.

112212211221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13480385.

The product of its digits is 64, while the sum is 21.

Adding to 112212211221111 its reverse (111122112212211), we get a palindrome (223334323433322).

The spelling of 112212211221111 in words is "one hundred twelve trillion, two hundred twelve billion, two hundred eleven million, two hundred twenty-one thousand, one hundred eleven".