111122200112001 has 64 divisors (see below), whose sum is σ = 164881289244672. Its totient is φ = 66133948269312.

The previous prime is 111122200111999. The next prime is 111122200112009. The reversal of 111122200112001 is 100211002221111.

It is a happy number.

It is not a de Polignac number, because 111122200112001 - 2¹ = 111122200111999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111122200112009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1208552836 + ... + 1208644778.

It is an arithmetic number, because the mean of its divisors is an integer number (2576270144448).

Almost surely, 2^{111122200112001} is an apocalyptic number.

It is an amenable number.

111122200112001 is a deficient number, since it is larger than the sum of its proper divisors (53759089132671).

111122200112001 is a wasteful number, since it uses less digits than its factorization.

111122200112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99102.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111122200112001 its reverse (100211002221111), we get a palindrome (211333202333112).

The spelling of 111122200112001 in words is "one hundred eleven trillion, one hundred twenty-two billion, two hundred million, one hundred twelve thousand, one".