11202221211111 has 16 divisors (see below), whose sum is σ = 18966723744000. Its totient is φ = 6401269263384.

The previous prime is 11202221211091. The next prime is 11202221211119. The reversal of 11202221211111 is 11111212220211.

It is a happy number.

11202221211111 is a `hidden beast` number, since 1 + 120 + 2 + 221 + 211 + 111 = 666.

It is not a de Polignac number, because 11202221211111 - 2²² = 11202217016807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11202221211119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29635505661 + ... + 29635506038.

It is an arithmetic number, because the mean of its divisors is an integer number (1185420234000).

Almost surely, 2^{11202221211111} is an apocalyptic number.

11202221211111 is a deficient number, since it is larger than the sum of its proper divisors (7764502532889).

11202221211111 is an equidigital number, since it uses as much as digits as its factorization.

11202221211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59271011715 (or 59271011709 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11202221211111 its reverse (11111212220211), we get a palindrome (22313433431322).

The spelling of 11202221211111 in words is "eleven trillion, two hundred two billion, two hundred twenty-one million, two hundred eleven thousand, one hundred eleven".