111221111200011 has 48 divisors (see below), whose sum is σ = 164152491420960. Its totient is φ = 66747254379520.

The previous prime is 111221111200009. The next prime is 111221111200141. The reversal of 111221111200011 is 110002111122111.

It is not a de Polignac number, because 111221111200011 - 2¹ = 111221111200009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111221111240011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 437715181 + ... + 437969201.

It is an arithmetic number, because the mean of its divisors is an integer number (3419843571270).

Almost surely, 2^{111221111200011} is an apocalyptic number.

111221111200011 is a deficient number, since it is larger than the sum of its proper divisors (52931380220949).

111221111200011 is a wasteful number, since it uses less digits than its factorization.

111221111200011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270316 (or 270293 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111221111200011 its reverse (110002111122111), we get a palindrome (221223222322122).

The spelling of 111221111200011 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred eleven million, two hundred thousand, eleven".