11111002220211 has 32 divisors (see below), whose sum is σ = 15703888730880. Its totient is φ = 6979235446656.

The previous prime is 11111002220209. The next prime is 11111002220243. The reversal of 11111002220211 is 11202220011111.

It is a happy number.

It is not a de Polignac number, because 11111002220211 - 2¹ = 11111002220209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11111002220281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12222376 + ... + 13099941.

It is an arithmetic number, because the mean of its divisors is an integer number (490746522840).

Almost surely, 2^{11111002220211} is an apocalyptic number.

11111002220211 is a deficient number, since it is larger than the sum of its proper divisors (4592886510669).

11111002220211 is a wasteful number, since it uses less digits than its factorization.

11111002220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25322483.

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

Adding to 11111002220211 its reverse (11202220011111), we get a palindrome (22313222231322).

The spelling of 11111002220211 in words is "eleven trillion, one hundred eleven billion, two million, two hundred twenty thousand, two hundred eleven".