112222121121111 has 16 divisors (see below), whose sum is σ = 150394288923648. Its totient is φ = 74432376900000.

The previous prime is 112222121121049. The next prime is 112222121121161. The reversal of 112222121121111 is 111121121222211.

It is not a de Polignac number, because 112222121121111 - 2⁷ = 112222121120983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112222121121161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13689606 + ... + 20294076.

It is an arithmetic number, because the mean of its divisors is an integer number (9399643057728).

Almost surely, 2^{112222121121111} is an apocalyptic number.

112222121121111 is a deficient number, since it is larger than the sum of its proper divisors (38172167802537).

112222121121111 is a wasteful number, since it uses less digits than its factorization.

112222121121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633422.

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

Adding to 112222121121111 its reverse (111121121222211), we get a palindrome (223343242343322).

The spelling of 112222121121111 in words is "one hundred twelve trillion, two hundred twenty-two billion, one hundred twenty-one million, one hundred twenty-one thousand, one hundred eleven".