111112212111201 has 12 divisors (see below), whose sum is σ = 183423334278912. Its totient is φ = 63492692634936.

The previous prime is 111112212111137. The next prime is 111112212111209. The reversal of 111112212111201 is 102111212211111.

111112212111201 is a `hidden beast` number, since 1 + 1 + 111 + 221 + 211 + 120 + 1 = 666.

It is not a de Polignac number, because 111112212111201 - 2⁶ = 111112212111137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111112212111209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 881842953201 + ... + 881842953326.

It is an arithmetic number, because the mean of its divisors is an integer number (15285277856576).

Almost surely, 2^{111112212111201} is an apocalyptic number.

It is an amenable number.

111112212111201 is a deficient number, since it is larger than the sum of its proper divisors (72311122167711).

111112212111201 is a wasteful number, since it uses less digits than its factorization.

111112212111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763685906540 (or 1763685906537 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 18.

Adding to 111112212111201 its reverse (102111212211111), we get a palindrome (213223424322312).

The spelling of 111112212111201 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred twelve million, one hundred eleven thousand, two hundred one".