11220202221111 has 18 divisors (see below), whose sum is σ = 17549547066168. Its totient is φ = 6904739827440.

The previous prime is 11220202221101. The next prime is 11220202221149. The reversal of 11220202221111 is 11112220202211.

11220202221111 is a `hidden beast` number, since 11 + 220 + 202 + 221 + 1 + 11 = 666.

11220202221111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11220202221111 - 2⁵ = 11220202221079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220202221101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3688427875 + ... + 3688430916.

Almost surely, 2^{11220202221111} is an apocalyptic number.

11220202221111 is a deficient number, since it is larger than the sum of its proper divisors (6329344845057).

11220202221111 is a wasteful number, since it uses less digits than its factorization.

11220202221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7376858823 (or 7376858807 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11220202221111 its reverse (11112220202211), we get a palindrome (22332422423322).

The spelling of 11220202221111 in words is "eleven trillion, two hundred twenty billion, two hundred two million, two hundred twenty-one thousand, one hundred eleven".