112211112222111 has 64 divisors (see below), whose sum is σ = 181159793491968. Its totient is φ = 60392634179328.

The previous prime is 112211112222089. The next prime is 112211112222241. The reversal of 112211112222111 is 111222211112211.

It is not a de Polignac number, because 112211112222111 - 2¹³ = 112211112213919 is a prime.

It is a super-2 number, since 2×112211112222111² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112211112222311) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78478851 + ... + 79895883.

It is an arithmetic number, because the mean of its divisors is an integer number (2830621773312).

Almost surely, 2^{112211112222111} is an apocalyptic number.

112211112222111 is a deficient number, since it is larger than the sum of its proper divisors (68948681269857).

112211112222111 is a wasteful number, since it uses less digits than its factorization.

112211112222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419580.

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

Adding to 112211112222111 its reverse (111222211112211), we get a palindrome (223433323334322).

The spelling of 112211112222111 in words is "one hundred twelve trillion, two hundred eleven billion, one hundred twelve million, two hundred twenty-two thousand, one hundred eleven".