11111221010133 has 16 divisors (see below), whose sum is σ = 16462056119040. Its totient is φ = 7407036093312.

The previous prime is 11111221010119. The next prime is 11111221010173. The reversal of 11111221010133 is 33101012211111.

It is not a de Polignac number, because 11111221010133 - 2¹⁴ = 11111220993749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111221010173) 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, 11890941 + ... + 12791282.

It is an arithmetic number, because the mean of its divisors is an integer number (1028878507440).

Almost surely, 2^{11111221010133} is an apocalyptic number.

It is an amenable number.

11111221010133 is a deficient number, since it is larger than the sum of its proper divisors (5350835108907).

11111221010133 is a wasteful number, since it uses less digits than its factorization.

11111221010133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24698905 (or 24698899 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 11111221010133 its reverse (33101012211111), we get a palindrome (44212233221244).

The spelling of 11111221010133 in words is "eleven trillion, one hundred eleven billion, two hundred twenty-one million, ten thousand, one hundred thirty-three".