111200111122 has 4 divisors (see below), whose sum is σ = 166800166686. Its totient is φ = 55600055560.

The previous prime is 111200111107. The next prime is 111200111149. The reversal of 111200111122 is 221111002111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 221111002111 = 41 ⋅5392951271.

It can be written as a sum of positive squares in only one way, i.e., 66471668041 + 44728443081 = 257821^2 + 211491^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27800027779 + ... + 27800027782.

Almost surely, 2^111200111122 is an apocalyptic number.

111200111122 is a deficient number, since it is larger than the sum of its proper divisors (55600055564).

111200111122 is an equidigital number, since it uses as much as digits as its factorization.

111200111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55600055563.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 111200111122 its reverse (221111002111), we get a palindrome (332311113233).

The spelling of 111200111122 in words is "one hundred eleven billion, two hundred million, one hundred eleven thousand, one hundred twenty-two".