11220202222111 has 4 divisors (see below), whose sum is σ = 11308550271232. Its totient is φ = 11131854172992.

The previous prime is 11220202222109. The next prime is 11220202222127. The reversal of 11220202222111 is 11122220202211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11220202222111 - 2¹ = 11220202222109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220202222511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44174024370 + ... + 44174024623.

It is an arithmetic number, because the mean of its divisors is an integer number (2827137567808).

Almost surely, 2^{11220202222111} is an apocalyptic number.

11220202222111 is a deficient number, since it is larger than the sum of its proper divisors (88348049121).

11220202222111 is an equidigital number, since it uses as much as digits as its factorization.

11220202222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88348049120.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11220202222111 its reverse (11122220202211), we get a palindrome (22342422424322).

The spelling of 11220202222111 in words is "eleven trillion, two hundred twenty billion, two hundred two million, two hundred twenty-two thousand, one hundred eleven".