111222020112001 has 4 divisors (see below), whose sum is σ = 111222865325104. Its totient is φ = 111221174898900.

The previous prime is 111222020111959. The next prime is 111222020112029. The reversal of 111222020112001 is 100211020222111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111222020112001 - 2¹³ = 111222020103809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111222020112101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422409135 + ... + 422672356.

It is an arithmetic number, because the mean of its divisors is an integer number (27805716331276).

Almost surely, 2^{111222020112001} is an apocalyptic number.

It is an amenable number.

111222020112001 is a deficient number, since it is larger than the sum of its proper divisors (845213103).

111222020112001 is an equidigital number, since it uses as much as digits as its factorization.

111222020112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845213102.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111222020112001 its reverse (100211020222111), we get a palindrome (211433040334112).

The spelling of 111222020112001 in words is "one hundred eleven trillion, two hundred twenty-two billion, twenty million, one hundred twelve thousand, one".