111221044211 has 16 divisors (see below), whose sum is σ = 117432000000. Its totient is φ = 105046212096.

The previous prime is 111221044199. The next prime is 111221044217. The reversal of 111221044211 is 112440122111.

It is a cyclic number.

It is not a de Polignac number, because 111221044211 - 2²² = 111216849907 is a prime.

It is a super-2 number, since 2×111221044211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111221044217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11930210 + ... + 11939528.

It is an arithmetic number, because the mean of its divisors is an integer number (7339500000).

Almost surely, 2^111221044211 is an apocalyptic number.

111221044211 is a deficient number, since it is larger than the sum of its proper divisors (6210955789).

111221044211 is a wasteful number, since it uses less digits than its factorization.

111221044211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11186.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111221044211 its reverse (112440122111), we get a palindrome (223661166322).

The spelling of 111221044211 in words is "one hundred eleven billion, two hundred twenty-one million, forty-four thousand, two hundred eleven".