111220012112211 has 48 divisors (see below), whose sum is σ = 166965983870400. Its totient is φ = 71283171778560.

The previous prime is 111220012112197. The next prime is 111220012112303. The reversal of 111220012112211 is 112211210022111.

It is a happy number.

111220012112211 is a `hidden beast` number, since 1 + 11 + 220 + 0 + 1 + 211 + 221 + 1 = 666.

It is not a de Polignac number, because 111220012112211 - 2⁶ = 111220012112147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111220012111211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11789271 + ... + 19011231.

It is an arithmetic number, because the mean of its divisors is an integer number (3478457997300).

Almost surely, 2^{111220012112211} is an apocalyptic number.

111220012112211 is a deficient number, since it is larger than the sum of its proper divisors (55745971758189).

111220012112211 is a wasteful number, since it uses less digits than its factorization.

111220012112211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7222556 (or 7222553 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 111220012112211 its reverse (112211210022111), we get a palindrome (223431222134322).

The spelling of 111220012112211 in words is "one hundred eleven trillion, two hundred twenty billion, twelve million, one hundred twelve thousand, two hundred eleven".