111222103222031 has 2 divisors, whose sum is σ = 111222103222032. Its totient is φ = 111222103222030.

The previous prime is 111222103222003. The next prime is 111222103222121. The reversal of 111222103222031 is 130222301222111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111222103222031 - 2³⁰ = 111221029480207 is a prime.

It is a super-2 number, since 2×111222103222031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111222103221988 and 111222103222006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111222103222001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55611051611015 + 55611051611016.

It is an arithmetic number, because the mean of its divisors is an integer number (55611051611016).

Almost surely, 2^{111222103222031} is an apocalyptic number.

111222103222031 is a deficient number, since it is larger than the sum of its proper divisors (1).

111222103222031 is an equidigital number, since it uses as much as digits as its factorization.

111222103222031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 111222103222031 its reverse (130222301222111), we get a palindrome (241444404444142).

The spelling of 111222103222031 in words is "one hundred eleven trillion, two hundred twenty-two billion, one hundred three million, two hundred twenty-two thousand, thirty-one".