111112212022111 has 4 divisors (see below), whose sum is σ = 111116251171800. Its totient is φ = 111108172872424.

The previous prime is 111112212022087. The next prime is 111112212022187. The reversal of 111112212022111 is 111220212211111.

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 111112212022111 - 2⁹ = 111112212021599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111112212022411) 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, 2019533581 + ... + 2019588598.

It is an arithmetic number, because the mean of its divisors is an integer number (27779062792950).

Almost surely, 2^{111112212022111} is an apocalyptic number.

111112212022111 is a deficient number, since it is larger than the sum of its proper divisors (4039149689).

111112212022111 is an equidigital number, since it uses as much as digits as its factorization.

111112212022111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039149688.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 111112212022111 its reverse (111220212211111), we get a palindrome (222332424233222).

The spelling of 111112212022111 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred twelve million, twenty-two thousand, one hundred eleven".